List of top Physics Questions asked in BITSAT

A person of mass $ 60 $ kg is inside a lift of mass $ 940 $ kg. The lift starts moving upwards with an acceleration of $ 1.0 $ m/s$ ^2 $. If $ g = 10 $ m/s$ ^2 $, the tension in the supporting cable is:

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:

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:

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?

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:

Young’s modulus of a material is $ Y $. If the length of a wire is doubled and the cross-sectional area is halved, then Young’s modulus will be:

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:

The kinetic energy of a satellite in its orbit around Earth is $ E $. What should be the kinetic energy of the satellite to escape Earth's gravity?

The range of a projectile projected at an angle of $ 15^\circ $ with the horizontal is $ 50 $ m. If the projectile is projected with the same velocity at an angle of $ 45^\circ $, then its range will be:

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.

Electric potential at a point 'P' due to a point charge of $ 5 \times 10^{-9} $ C is 50 V. The distance of 'P' from the point charge is: (Assume, $ \frac{1}{4\pi\epsilon_0} = 9 \times 10^{9} \, {Nm}^2{C}^{-2} $)

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:

The electric field at point (30, 30, 0) due to a charge of $0.008 \, \mu{C}$ placed at the origin will be: (coordinates are in cm)

A cube of ice floats partly in water and partly in kerosene oil. The ratio of volume immersed in water to that in kerosene oil is:

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

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:

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:

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

The potential of a large liquid drop when eight liquid drops are combined is 20 V. Then, the potential of each single drop was:

A plane progressive wave is given by y = 2 cos 2pi (330t - x) m. The frequency of the wave is:}

The distance between the Sun and Earth is $ R $. The duration of a year if the distance between the Sun and Earth becomes $ 3R $ will be:

Pressure inside two soap bubbles are 1.01 and 1.02 atmosphere, respectively. The ratio of their volumes is: