NEET 2013

When a proton is released from rest in a room,it starts with an initial acceleration $$a_{o}$$ towards west. When it is projected towards north with a speed $$\nu_{0}$$ it moves with an initial acceleration $$3a_{0}$$ toward west. The electric and magnetic fields in the room are:

A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m-f. is :

A uniform force of $$(3\hat{i}+\hat{j})$$ newtonacts on a particle of mass 2 kg. Hence theparticle is displaced from position $$(2\hat{i}+\hat{k})$$ meter to position: $$(4\hat{i}+3\hat{j}-\hat{k})$$ meter, The work done by the force on the particle is :

The wettability of a surface by a liquid depends primarly on:

Infinite number of bodies , each of mass 2 kg are situated on x-axis at distances 1m,2m,4m,8m,..... respectively form the origin. The resulting gravitational potentail due to this system at the origin will be:

The value of Planck's constant is $$6.63 \times 10^{-34}$$ Js .The speed of the light is $$43 \times 10^{17} nm s^{-1}$$. Which value is closest to the wavelength in nanometer of a quantum light with frequency of $$6 \times 10^{15}s s^{-1}$$?

The radical,

is aromatic because it has:

Which of the following is electron-deficient ?

Which of the following statements about the interstitial compoundsis incorrect ?

How many grams of concentrated nitric acid solution should be used to prepare 250mL of 2.0M $$HNO_{3}$$? The concentrated acid is 70% $$HNO_{3}$$