NEET Physics | Daily MCQs Practice Questions | 24 July 2024 | NEET Exam

If the kinetic energy of the particle is increased to 16 times, the percentage change in the de Broglie wavelength of the particle is :

 Ratio of magnetic fields at the centre of a current carrying coil of radius R and at distance of 3R on its axis is :

A dia-magnetic material in a magnetic field moves:

A stone is thrown at 25 m/s at 53° above the horizontal. At what time its velocity is at 45° below the horizontal :

The ratio of the distance covered to the displacement of a particle moved along a semi-circle of radius r is:

 The v-t graph for a particle is shown. The distance travelled in the first four seconds is :

 A polarized light of intensity I₀  is passed through another polarizer whose pass axis makes an angle of 60° with the pass axis of the former. What is the intensity of emerging polarised light from second polarizer?

 In shown circuit what should be the value of resistance that should be attached in parallel with 20Ω so that no current flows through 5Ω resistance:

In equation $\left(\mathrm{P}+\frac{\mathrm{a}}{{\mathrm{v}}^2}\right)$(V – b) = RT . The quantity  $\frac{a}{PVb}$ is dimensionally equal to :

 A particle of mass m moving with velocity v north wards, collides with another particle of mass m moving with velocity v east wards. After the collision the two particles coalesce. The velocity of the new particle is :

An electric field is applied to a semiconductor. Let the number of charge carriers be n and the average drift speed be v. If the temperature is increased-

An electric field $$\mathbf{E}=(20\mathbf{i}+25\mathbf{j})$$ exist in space . If the potential at the origin is zero , then the potential at point (2 m , 4m) is :

The force between two short electric dipoles separated by a distance r varies as :

Find the reading of volt meter if it is ideal from shown circuit :

If $\vec{A} = 3\hat{i} + 4\hat{j} + 5\hat{k}$ and $\vec{B} = \hat{i} + \hat{j} + \hat{k}$

Match the columns A and B: