Answer the following questions : A man with a wristwatch on his hand falls from the top of a tower. Does the watch give correct time during the free fall ?

A stone is allowed to fall from the top of a tower after 6 s.Find : its position after 4 s.

A stone is allowed to fall from the top of a tower after 6 s.Find : the maximum height it reaches,a nd

Answer the following questions: The earth’s magnetic field varies from point to point in space. Does it also change with time? If so, on what time scale does it change appreciably?

A stone is allowed to fall from the top of a tower after 6 s.Find : the velocity with which it was thrown up,

The answer to each of the following question is a single- digit- integer ranging from 0 to 9. Darken the correct digit. The concentration of R in the reaction R rarr P was measured as a function of time and the following data is obtained : The order of the reaction is

Answer the following questions:The earth may have even reversed the direction of Its field several times during its history of 4 to 5 billion years. How can geologists know about the earth’s field in such distant past?

Answer the following questions : What is the frequency of oscillation of a simple pendulum mounted in a cabin that is freely falling under gravity ?

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion and reason both are correct statements and reason is correct explanation for assertion Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion: Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason: Graphite is soft in nature on the other hand diamond is very hard and brittle.

The answer to each of the following question is a single- digit-integer ranging from 0 to 9. Darken the correct digit. The number ofions per mole of the complex [PtCl(NH_3)_5] Cl_3 is

Climate refers to the physical environmental factors of an area. These include duration and intesity of light, temperature, humidity, wind, gases, etc. The climate change refers to the changes in these environmental factors of an area over long eriod of time. Main culprit of such climatic change is man himself as his activities are adversely affecting the delicate ecological balance between various components of the environment. Answer the following questions regarding climate change. Which international Summit finalised the reduction level of various agents causing global warming?