List of top Physics Questions asked in MHT CET

A ray of light travelling through rarer medium is incident at a very small angle \( \theta \) on a glass slab and after refraction its velocity is reduced by 20%. The angle of deviation is

A body is rotating about its own axis. Its rotational kinetic energy is \( x \) and its angular momentum is \( y \). Hence its moment of inertia about its own axis is

Using Bohr's quantization condition, the rotational kinetic energy in the third orbit for a diatomic molecule is \( \left( h = \text{Planck's constant}, I = \text{moment of inertia of diatomic molecule} \right) \)

The space within the current carrying toroid is filled with aluminium of susceptibility \( \chi \). The percentage increase in the magnetic field \( B \) will be

The radii of circular orbits of two satellites \( A \) and \( B \) of the earth are \( R \) and \( R' \) respectively, where \( R \) is the radius of the earth. If the speed of satellite \( B \) is 6 V, then the speed of satellite \( A \) will be

The two coherent sources produce interference with intensity ratio 'b'. In the interference pattern, the ratio \[ \frac{I_{\text{max}}}{I_{\text{min}}} \] will be

The moment of inertia of a ring about an axis passing through its centre and perpendicular to its plane is \( I \). It is rotating with angular velocity \( \omega \). Another identical ring is gently placed on it so that their centres coincide. If both the rings are rotating about the same axis, then loss in kinetic energy is

A unit vector in the direction of resultant vector of \[ \mathbf{A} = -2\hat{i} + 3\hat{j} + \hat{k}, \quad \mathbf{B} = \hat{i} + 2\hat{j} - 4\hat{k} \] is

In the circuit shown in the figure, \( P \neq R \). The reading of the galvanometer remains the same with switch \( S \) open or closed. Then

Error in the measurement of radius of the sphere is 2%. The error in the calculated value of its volume is

The gravitational pull of the moon is $(\frac{1}{6})^{th}$ of the earth and mass of moon is $(\frac{1}{8})^{th}$ of the earth. This implies that the

When one end of the capillary is dipped in water, the height of water column is 'h'. The upward force of 108 dyne due to surface tension is balanced by the force due to the weight of water column. The inner circumference of the capillary is (surface tension of water $=7.2\times10^{-2}N/m$)

In thermodynamic processes, which of the following statements is NOT true?

Closed and open organ pipes have same length. In first overtone, they produce four beats. If open pipe length is halved and closed pipe doubled, the beats in fundamental mode are

A man on a turn-table folds his arms. If his moment of inertia with folded arms is 75% of original, his rotational kinetic energy will

Kirchhoff's voltage law and current law are based (respectively) on the conservation of

Quantities p, q, r, s are measured with errors 3%, 2%, 3% and 1%. $A = \frac{pq^{2}{r^{3}s}$. The percentage error in A is}

In series LCR circuit $R=18\Omega$ and $Z=30\Omega$. An rms voltage 210 V is applied. The true power consumed is nearly

A car moving at a speed 'V' is stopped in a certain distance with deceleration 'a'. If the speed of the car is 'nV', what must be the deceleration of the car to stop it in the same distance and in the same time?

The graph shows the variation of photocurrent with anode potential for four different radiations. If $I$ denotes intensity and $f$ denotes frequency, which of the following is correct?

A radioactive element has rate of 8000 disintegrations per minute. After four minutes it becomes 2000 disintegrations per minute. The decay constant per minute is

A mass 'M' attached to a horizontal spring executes S.H.M. of amplitude $A_{1}$. When the mass M passes through its mean position, a smaller mass 'm' is placed over it and both move together with amplitude $A_{2}$. The ratio $(A_{1}/A_{2})$ is}

The function of a dielectric in a capacitor is