What will be the acceleration due to gravity at a depth $ d $, where $ g $ is the acceleration due to gravity on the surface of the Earth?

One main scale division of a vernier caliper is equal to $ m $ units. If the $ m $ divisions of the main scale coincide with the $ (n + 1)^{\text{th}} $ division of the vernier scale, the least count of the vernier caliper is:

Identify the correct output signal $ Y $ in the given combination of gates for the given inputs $ A $ and $ B $ shown in the figure.

The atomic mass of $^{6}C^{12}$ is 12.000000 u and that of ${}^{6}C^{13}$ is 13.003354 u. The required energy to remove a neutron from ${}^{6}C^{13}$, if the mass of the neutron is 1.008665 u, will be:

The minimum excitation energy of an electron revolving in the first orbit of hydrogen is:

The ratio of the shortest wavelength of the Balmer series to the shortest wavelength of the Lyman series for the hydrogen atom is:

Which of the following transitions of He$^+$ ion will give rise to a spectral line that has the same wavelength as the spectral line in a hydrogen atom?

The acceptor level of a p-type semiconductor is $ 6 $ eV. The maximum wavelength of light which can create a hole would be: Given $ hc = 1242 $ eV nm.

Which figure shows the correct variation of applied potential difference ($V$) with photoelectric current ($I$) at two different intensities of light ($I_1<I_2$) of same wavelengths:

When a light ray incidents on the surface of a medium, the reflected ray is completely polarized. Then the angle between reflected and refracted rays is:

The property of light which cannot be explained by Huygen's construction of a wavefront is:

A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm. The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from the slit will be:

In YDSE, monochromatic light falls on a screen 1.80 m from two slits separated by 2.08 mm. The first and second order bright fringes are separated by 0.553 mm. The wavelength of light used is:

If the distance between an object and its two times magnified virtual image produced by a curved mirror is 15 cm, the focal length of the mirror must be:

In normal adjustment, for a refracting telescope, the distance between the objective and eyepiece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be:

Power of a biconvex lens is $ P $ diopter. When it is cut into two symmetrical halves by a plane containing the principal axis, the ratio of the power of two halves is:

An alternating voltage $ V(t) = 220 \sin 100\pi t $ volt is applied to a purely resistive load of $ 50\Omega $. The time taken for the current to rise from half of the peak value to the peak value is:

In an AC circuit, an inductor, a capacitor, and a resistor are connected in series with $ X_L = R = X_C $. The impedance of this circuit is:

Find the average value of the current shown graphically from $ t = 0 $ to $ t = 2 $ s.

Inside a solenoid of radius $ 0.5 $ m, the magnetic field is changing at a rate of $ 50 \times 10^{-6} $ T/s. The acceleration of an electron placed at a distance of $ 0.3 $ m from the axis of the solenoid will be:

A long straight wire of radius $ a $ carries a steady current $ I $. The current is uniformly distributed across its cross-section. The ratio of the magnetic field at $ a/2 $ and $ 2a $ from the axis of the wire is:

Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series. Then the ratio $\frac{R}{r}$ is:

A wire of resistance $160\Omega$ is melted and drawn into a wire of one-fourth of its length. The new resistance of the wire will be:

A conducting wire is stretched by applying a deforming force, so that its diameter decreases to 40% of the original value. The percentage change in its resistance will be:

In the following circuit diagram, when the $3\Omega$ resistor is removed, the equivalent resistance of the network:

List of top Physics Questions on thermal properties of matter asked in BITSAT