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[A] : Behavioural activities that are co...

[A] : Behavioural activities that are correlated with a one week cycle under fairly constant conditions are called circadian rhythms .
[R] : Experiments have proved that biological clock is entirely internal.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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Einstein in 1905 proppunded the special theory of relativity and in 1915 proposed the general theory of relativity. The special theory deals with inertial frames of reference. The general theory of relativity deals with problems in which one frame of reference. He assumed that fixed frame is accelerated w.r.t. another frame of reference of reference cannot be located. Postulated of special theory of realtivity ● The laws of physics have the same form in all inertial systems. ● The velocity light in empty space is a unicersal constant the same for all observers. ● Einstein proved the following facts based on his theory of special relativity. Let v be the velocity of the speceship w.r.t a given frame of reference. The obserations are made by an observer in that reference frame. ● All clocks on the spaceship wil go slow by a factor sqrt(1-v^(2)//c^(2)) ● All objects on the spaceship will have contracted in length by a factor sqrt(1-v^(2)//c^(2)) ● The mass of the spaceship increases by a factor sqrt(1-v^(2)//c^(2)) ● Mass and energy are interconvertable E = mc^(2) The speed of a meterial object can never exceed the velocity of light. ● If two objects A and B are moving with velocity u and v w.r.t each other along the x -axis, the relative velocity of A w.r.t. B = (u-v)/(1-uv//v^(2)) One cosmic ray particle appraches the earth along its axis with a velocity of 0.9c towards the north the and another one with a velocity of 0.5c towards the south pole. The relative speed of approcach of one particle w.r.t. another is-

Einstein in 1905 proppunded the special theory of relativity and in 1915 proposed the general theory of relativity. The special theory deals with inertial frames of reference. The general theory of relativity deals with problems in which one frame of reference. He assumed that fixed frame is accelerated w.r.t. another frame of reference of reference cannot be located. Postulated of special theory of realtivity ● The laws of physics have the same form in all inertial systems. ● The velocity light in empty space is a unicersal constant the same for all observers. ● Einstein proved the following facts based on his theory of special relativity. Let v be the velocity of the speceship w.r.t a given frame of reference. The obserations are made by an observer in that reference frame. ● All clocks on the spaceship wil go slow by a factor sqrt(1-v^(2)//c^(2)) ● All objects on the spaceship will have contracted in length by a factor sqrt(1-v^(2)//c^(2)) ● The mass of the spaceship increases by a factor sqrt(1-v^(2)//c^(2)) ● Mass and energy are interconvertable E = mc^(2) The speed of a meterial object can never exceed the velocity of light. ● If two objects A and B are moving with velocity u and v w.r.t each other along the x -axis, the relative velocity of A w.r.t. B = (u-v)/(1-uv//v^(2)) The momentum of an electron moving with a speed 0.6 c (Rest mass of electron is 9.1 xx 10^(-31 kg )

Einstein in 1905 proppunded the special theory of relativity and in 1915 proposed the general theory of relativity. The special theory deals with inertial frames of reference. The general theory of relativity deals with problems in which one frame of reference. He assumed that fixed frame is accelerated w.r.t. another frame of reference of reference cannot be located. Postulated of special theory of realtivity ● The laws of physics have the same form in all inertial systems. ● The velocity light in empty space is a unicersal constant the same for all observers. ● Einstein proved the following facts based on his theory of special relativity. Let v be the velocity of the speceship w.r.t a given frame of reference. The obserations are made by an observer in that reference frame. ● All clocks on the spaceship wil go slow by a factor sqrt(1-v^(2)//c^(2)) ● All objects on the spaceship will have contracted in length by a factor sqrt(1-v^(2)//c^(2)) ● The mass of the spaceship increases by a factor sqrt(1-v^(2)//c^(2)) ● Mass and energy are interconvertable E = mc^(2) The speed of a meterial object can never exceed the velocity of light. ● If two objects A and B are moving with velocity u and v w.r.t each other along the x -axis, the relative velocity of A w.r.t. B = (u-v)/(1-uv//v^(2)) A stationary body explodes into two fragments each of rest mass 1 kg that move apart at speed of 0.6c relative to the original body. The rest mass of the original body is -

The gases which strictly follow the general equation (PV = nRT) are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen ect. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviation A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor (Z) Z = (PV)/(nRT) (i) Z = 1 , for ideal gases. (ii) Z != 1 , for real gases. The behaviour of a real gas is usually depiected by plotting compressibility factor Z versus pressure P at a constant temperature. At high temperature and pressure, Z is usually more than one. This fact can be explained by van der Waal's equation when :

The gases which strictly follow the general equation (PV = nRT) are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen ect. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviation A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor (Z) Z = (PV)/(nRT) (i) Z = 1 , for ideal gases. (ii) Z != 1 , for real gases. The units of compressibility factor are :

The gases which strictly follow the general equation (PV = nRT) are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen ect. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviation A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor (Z) Z = (PV)/(nRT) (i) Z = 1 , for ideal gases. (ii) Z != 1 , for real gases. At Boyle's temperature, compressibility factor Z for a real gas is :

The gases which strictly follow the general equation (PV = nRT) are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen ect. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviation A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor (Z) Z = (PV)/(nRT) (i) Z = 1 , for ideal gases. (ii) Z != 1 , for real gases. At low pressure, the van der Waals' equation is reduced to :

The gases which strictly follow the general equation (PV = nRT) are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen ect. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviation A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor (Z) Z = (PV)/(nRT) (i) Z = 1 , for ideal gases. (ii) Z != 1 , for real gases. Consider the equation Z = (PV)/(nRT) , which of the following statements is correct ?

India's manufacturing growth fell to its lowestin more than two years in September, 2011 , reinforcing fears that an extended period of high policy-rates is hurting growth, accqrding to a closely vatched index. The HSBC India Purch:asing Managers' Index (PMI), based one survey of over 500 companies, fell to 50.4 from 52.6 in August and 53.6 in July. It was the lowest since March 2009, when the reading was below 5-0, indicating contraction. September's index also recorded the biggest one-month fall since November 2008. The sub index for new orders, which reflects future output, declined for the sixth successive month, while export orders fell for a third month on the back of weakness in global economy. The Reserve Bank of India (RBI) last week indicate·d it was not done yet with monetary pocicy tightening as inflation was still high. The bank has already raised rates 12 times since March 201 Oto tame inflation, which is at a.13-month high of9. 78%. Economists expect the RBI toraise rates 6ne'more time but warn that target¥d growth will be hard .to achieve if the slump continues. "This ( fall in PMI) was driven by weaker orders, with export orders still contracting due to the weaker global economic conditions," HSBC said in a press release quoting its chief economist for India & ASEAN. PMI is considered a fairly good indicator of manufacturing · activity the world over, but in the case of India, the large contribution of the unorganised sector yields a low correlation 1 with industrial growth. However, the Index for Industrial Production (IIP) has been showing a weakening trend, having slipped to a 21-month low of 3.3% in July. The core sector, which consists of eight infrastructure industries and has a combined weight of 37.9% in the IIP, also grew at only3.5% in August. The PMI data is in line with the suffering manufacturing activity in India as per other estimates. Producers are seeing that demand conditions are softening and the outlook is uncertain, therefore they are producing less. Employment in the manufacturing sector ·declined for the second consecutive month, indicating it too was under pressure. This could be attributed to lower requirement of staff and rise in resignations as higher wage requests go unfulfilled, the HSBC statement said. On the inflation front, input prices rose at an 11-month low rate, but despite signs of softening they still remain at historically high levels. While decelerating slightly, the readings for input and output priGes suggest that inflation pressures remain firmly in place. Most economists feel the RBI is close to the end of its rate hike cycle. Even the weekly -Wholesale Price Index . (WPI) estimates have started showing signs of softening, having fallen more than one percentage point. The PMI is based on surveys of

TRUEMAN BIOLOGY-Living World -ASSERTION AND REASON
  1. [A] : Homeostasis is the maintenance of a stable internal environment ...

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  2. [A] : Usually the cells of animals and plants have controlled growth ....

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  3. [A] : Behavioural activities that are correlated with a one week cycle...

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  4. [A] : Prokaryotic cell shows no cyclosis. [R] : Eukaryotic cell show...

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  5. [A] : No energy can be released in the cell in the absence of mitochon...

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  6. [A] : The lymphocytes have well developed lysosomes . [R] : Because ...

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  7. [A] : Prokaryotes lack Mitochondria. [R] : Their plasma membrane bea...

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  8. [A] : Nuclear membrane of karyotheca forms an envelope-like structure ...

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  9. [A] : The space between nuclear envelope and nucleolus is filled by ka...

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  10. [A] : Leucocytes can digest any thing harmful they eat . [R] : Leuco...

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  11. [A] : The nuclear membrane forms envelope like structure called nuclea...

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  12. [A] : The nuclear envelope is the derivative of membrane of mitochondr...

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  13. [A] : Rods and cones of retina are modified cilia . [R] : Cilia are ...

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  14. [A] : Golgi bodies are dictyosomes are synonymous . [R] : In plants ...

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  15. [A] : Mitochondria have evolved from bacteria . [R] : Mitochondria a...

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  16. [A] : Calcium carbonate crystals are called cystoliths . [R] : The m...

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  17. [A] : F(0) - F(1) - ATPase complex is embedded in inner membrane of mi...

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  18. [A] : Centromere is concerned with splitting of chromosomes . [R] : ...

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  19. [A] : Peroxisomes and basal bodies are called microbodies . [R] : Mi...

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  20. [A] : A microtubule structure that brings about chromosomal movement d...

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