Class 11 Physics 2021 2nd Annual MCQs Test

The net force that acts on a 10N falling object, when it encounters 4N of air resistance is:

The density of mercury at S.T.P is:

A cyclic process is represented by the equation:

Which one of the following is NOT a conservative force?

Two monochromatic radiations X and Y are incident normally on a diffraction grating. The second-order intensity maximum for X coincides with the third-order intensity maximum for Y. What is the ratio \frac {wavelength of X}{wavelength of Y} ?

Find the dimensions of gravitational constant G from the formula F = G \frac{m_1m_2}{r^2} , where F is force, m1 and m2 are masses and d is the distance between centers of objects.

The SI unit of molar specific heat is:

A paratrooper falling down with constant velocity is in:

Torque and Moment of inertia are related according to the equation:

The value of escape velocity from the earth’s surface is:

The angular form of centripetal acceleration is:

The principle of the Michelson interferometer is based on the division of:

The angel ‘θ’ which \bar{A}=2.3\hat{i}+4.1\hat{j} makes with the positive x-axis is:

In a closed organ pipe which one is the second harmonic f2?

Which of the following electromagnetic waves are used in MRI?

In which of the following system is the entropy decreasing?

Range of a projectile on a horizontal plane is same for the following pair of angles: