Question 1 of 10

In Young's double slit experiment, the width of one of the slits is slowly increased to make it twice the width of the other slit. Then in the interference pattern:

Question 2 of 10

The values of λ so that the line 3x-4y=λ touches x²+y²-4x-8y-5=0 are

Question 3 of 10

Among the following compounds, the one that gets hydrolysed to form metallic hydroxide, hydrogen peroxide and oxygen is

Question 4 of 10

If α, β, γ are the angles made by a straight line with the coordinate axes, then sin²α+sin²β+sin²γ is

Question 5 of 10

Question 6 of 10

The rate of a First order reaction 0.04 {tex}mol^{-1} S^{-1}{/tex} at 10 seconds 0.03 {tex}mol^{-1} s^{-1}{/tex} at 20 seconds after intiation of reaction. The half life period of the reaction is

Question 7 of 10

∫e^{3 log x} (x⁴+1)^-1 dx is equal to

Question 8 of 10

The molecule having smallest bond angle is :

Question 9 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 10 of 10

At a certain temperature, the dissociation constants of formic acid and acetic acid are 1.8 x 10-4 and 1.8 x 10-5 respectively. The concentration of acetic acid solution in which the hydrogen ion has the same concentration as in 0.001 M formic acid solution is equal to