Home
Class 11
BIOLOGY
Swathy comes to India form America throu...

Swathy comes to India form America through air after a long journey,she suffers with jeting. Find out the reason

Text Solution

Verified by Experts

Jet lag occurs when a person crosses multiple time zones. This disturbs the internal clock or circadian rhythms, which regulates sleep-wake cycle.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL COORDINATION AND INTEGRATION

    FULL MARKS|Exercise Entrance Exam Questions Solved|30 Videos

  • CHEMICAL COORDINATION AND INTEGRATION

    FULL MARKS|Exercise Additional Questions Solved I (Choose the best answer)|28 Videos

  • CHEMICAL COORDINATION AND INTEGRATION

    FULL MARKS|Exercise IN-TEXT QUESTIONS SOLVED|3 Videos

  • CELL: THE UNIT OF LIFE

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (V. Higher Order Thinking Skills)|7 Videos

  • DIGESTION AND ABSORPTION

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( III. Answer the following Questions )|46 Videos

Similar Questions

Explore conceptually related problems

A person got his finger cut, after sometime the bleeding is stooped. Find out the reasons and explain its process.

Consider the circuit shown in figure.(a) find the current through the battery a long time after the switch S is closed. (b) Suppose the switch is again opened at t = 0. What is the time constant of the discharging circuit? (c ) Find t current through the inductor after one time constant.

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of the following options:

Water leaks out from an open tank through a hole of area 2mm^2 in the bottom. Suppose water is filled up to a height of 80 cm and the area of cross section of the tankis 0.4 m^2 . The pressure at the open surface and the hole are equal to the atmospheric pressure. Neglect the small velocity of the water near the open surface in the tank. a. Find the initial speed of water coming out of the hole. b. Findteh speed of water coming out when half of water has leaked out. c. Find the volume of water leaked out during a time interval dt after the height remained is h. Thus find the decrease in height dh in term of h and dt. d. From the result of part c. find the time required for half of the water to leak out.

Two convex lenses each of focal length 10 cm, are placed at a separation of 15 cm with their principal axes coinciding. (a) Show that a light beam coming parallel to the principal axis diverges as it comes out of the lens system. (b) Find the location of the virtual image formed by the lens system of an object placed far away. (c ) Find the focal length of the equivalent lens.

Arrange the following statements in correct sequence: 1. These vapours condense to form tiny droplets of water. 2. The water droplets come together to form large water droplets. 3. The heat of the sun causes evaporation of water from the surface of the earth, oceans, lakes, rivers and other water bodies. 4. The large water droplets become heavy and the air cannot hold them, therefore, they fall as rains. 5. Water vapour is also continuously added to the atmosphere through transpiration from the surface of the leaves of trees. 6. Warm air carrying clouds rises up. 7. Higher up in the atmosphere, the air is cool. 8. These droplets floating in the air along with the dust particles form clouds.

Assume that the chances of a patient having a heart attack is 40%. It is also assumed that a meditation and yoga course reduce the risk of heart attack by 30% and prescription of certain drug reduces its chance by 25%. At a time a patient can choose any one of the two options with equal probabilities. It is given that after going through one of the two options the patient selected at random suffers a heart attack. Find the probability that the patient followed a course of meditation and yoga?

The internal resistance of an accumulator battery of emf 6V is 10(Omega) when it is fully discharged,As the battery gets charged up.its internal resistance decreases to 1(Omega) The battery in its completely discharged state is connected to a charger which maintains a constant potential difference of 9 V.Find the current through the battery (a)just after the connections are made and (b) after a long time when it is completely charged.

(i)A man is standing between two vertical wall 680 m apart. He claps his hands and hears two distinct echoes after 0.9 seconds and 1.1 seconds respectively .What is the speed of sound in the air ? (ii) An electric heater of resistance 5 Omega is connected to an electric source .If a current of 6 A flows through the heater then find the amount of heat produced in 5 minutes.

A long solenoid of radius 2 cm has 100 turns/cm and is surrounded by a 100- turn coil of radius 4cm having a total resistance of 20 Omega . The coil is connected to a galvanometer as shown in fig. If the current in the solenoid is changed form 5 A in one direction to 5 A in the opposite direction, find the charge which flows through the galvanometer.