Question 1 of 10

Two bodies are thrown vertically upwards with their initial speeds in the ratio 2 : 3. The ratio of the maximum heights reached by them and the ratio of their time taken by them to return back to the ground respectively are

Question 2 of 10

A

B

C

D

E

Question 3 of 10

The rate of a reaction doubles when its temperature changes from 300 K to 310 K. Activation energy of such a reaction will be: (R = 8.314 J{tex}K^{-1} mol^{-1}{/tex} and log2 = 0.301)

Question 4 of 10

Sulphur trioxide can be obtained by which of the following reaction.

Question 5 of 10

No of {tex}H_2O{/tex} molecules in a drop of water weighing 0.05g is:

Question 6 of 10

A spring of force constant k is cut into two pieces such that one piece is double the length of the other. The force constant of the longer piece will be

Question 7 of 10

For the data

the Karl Pearson coefficient is

Question 8 of 10

The major product of the reaction between tert-butylchloride and sodium-ethoxide is

Question 9 of 10

then the matrix A is equal to

A

B

C

D

E

Question 10 of 10

Two thin metallic strips carrying current in the direction shown, cross each other perpendicularly without touching but being close to each other, as shown. The regions which contain some points of zero magnetic induction are: