List of top Questions asked in BITSAT

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:

In the given cycle ABCDA, the heat required for an ideal monoatomic gas 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:

Young's double slit experiment is performed in a medium of refractive index $ 1.33 $. The maximum intensity is $ I_0 $. The intensity at a point on the screen where the path difference between the light coming out from slits is $ \lambda/4 $, is:

The coefficient of the highest power of $x$ in the expansion of $(x + \sqrt{x^2 - 1})^8 + (x - \sqrt{x^2 - 1})^8$ is:

A 1 L closed flask contains a mixture of 4 g of methane and 4.4 g of carbon dioxide. The pressure inside the flask at 27\degree C is (Assume ideal behaviour of gases):

A particle of mass $ 2 $ kg is on a smooth horizontal table and moves in a circular path of radius $ 0.6 $ m. The height of the table from the ground is $ 0.8 $ m. If the angular speed of the particle is $ 12 $ rad/s, the magnitude of its angular momentum about a point on the ground right under the center of the circle is:

Evaluate the following limit: $ \lim_{n \to \infty} \prod_{r=3}^n \frac{r^3 - 8}{r^3 + 8} $.

If $ a, c, b $ are in GP, then the area of the triangle formed by the lines $ ax + by + c = 0 $ with the coordinate axes is equal to:

A spherical ball of mass $ 20 $ kg is stationary at the top of a hill of height $ 100 $ m. It rolls down a smooth surface to the ground, then climbs up another hill of height $ 30 $ m and finally rolls down to a horizontal base at a height of $ 20 $ m above the ground. The velocity attained by the ball is:

A particle is moving in a straight line. The variation of position $ x $ as a function of time $ t $ is given as:
$ x = t^3 - 6t^2 + 20t + 15 $.
The velocity of the body when its acceleration becomes zero is:

What is X in the following reaction?
$CO + 2H_2 \xrightarrow{X} CH_3OH$

Consider the following two propositions: $$ P_1: \neg (p \rightarrow \neg q) $$ $$ P_2: (p \wedge \neg q) \wedge ((\neg p) \vee q) $$ If the proposition $p \rightarrow ((\neg p) \vee q)$ is evaluated as FALSE, then:

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:

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 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:

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:

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

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 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:

If the kinetic energy of a free electron doubles, its de-Broglie wavelength changes by the factor: