List of top Physics Questions asked in MHT CET

A mass of 0.5 kg is attached to a spring of force constant 200 N/m. What is the time period of oscillation?
A particle on a string undergoes a transverse wave motion given by: \[ y = 5 \sin \left( 4 \pi t - \frac{\pi x}{2} \right) \] (All quantities in SI units.) How much time does a particle at \( x = 0 \) take to go from mean position to extreme (maximum displacement) for the first time?
A passenger is sitting in a fast moving train. The engine of the train blows a whistle of frequency N. If the apparent frequency of sound heard by the passengers is \( N' \), then:
How much time does a particle at \( x = C \) take to go from the mean position to the extreme (maximum displacement) for the first time?
Two resistors, 4 ohm and 6 ohm, are connected in parallel, and this combination is connected in series with a 2 ohm resistor to a 12V battery. What is the total power dissipated?
A uniform circular disc of mass 2 kg and radius 0.5 m is mounted on a frictionless axle. A force of 4 N is applied tangentially at the rim for 2 seconds. Find the angular velocity acquired by the disc at the end of 2 seconds.
An electron enters a magnetic field of magnitude 0.05 T at a speed of \( 3 \times 10^6 \) m/s, making an angle of 30° with the field direction. What is the magnitude of magnetic force on it? % Charge of electron = \( 1.6 \times 10^{-19} \) C
A wire of length \( L \) having Resistance \( R \) falls from a height \( h \) in Earth's horizontal magnetic field. What is the current through the wire?
What is the ratio of the wavelength of the Lyman series limit to the Paschen series limit?
In Young's double slit experiment, we get 15 fringes per cm on the screen, using light of wavelength 5600 \AA. For the same setting, how many fringes per cm will be obtained with light of wavelength 7000 \AA?
In Young's double slit experiment, we get 15 fringes per cm on the screen, using light of wavelength 5600 Ã…. For the same setting, how many fringes per cm will be obtained with light of wavelength 7000 Ã…?
A transverse wave along a string is given by \( y = 2 \sin \left( 2\pi (3t - x) + \frac{\pi{4} \right) \), where \( x \) and \( y \) are in cm and \( t \) in second. Find the acceleration of a particle located at \( x = 4 \) cm at \( t = 1 \) s.}
Two resistors, \( 4 \Omega \) and \( 6 \Omega \), are connected in parallel, and this combination is connected in series with a \( 2 \Omega \) resistor to a 12V battery. What is the total power dissipated?
What is the ratio of the wavelength of a photon?
A gas undergoes a process \( PV^2 = \text{constant} \). Initially, pressure = 2 atm, volume = 1 L. It expands to 2 L. Find the work done by the gas in joules.
A spaceship moves with a velocity of 5000 m/s. What is the relativistic factor \( \gamma \) for the spaceship? (Given that \( c = 3 \times 10^8 \, \text{m/s} \))
The gravitational potential energy of a 2 kg object at a height of 5 m above the surface of the Earth is?
A light ray passes from air (refractive index = 1) into water (refractive index = 1.33). If the angle of incidence is 30°, what is the angle of refraction in water?
A gas expands from a volume of 2 m\(^3\) to a volume of 5 m\(^3\) at a constant pressure of \( 2 \times 10^5 \, \text{Pa} \). Calculate the work done by the gas.
The frequency of a wave is 50 Hz, and its wavelength is 2 m. What is the speed of the wave?
A 0.2 kg ball is dropped from a height of 10 meters. What is the velocity of the ball just before it hits the ground? (Assume \( g = 9.8 \, \text{m/s}^2 \) and neglect air resistance.)
In a p-n junction diode, what happens to the width of the depletion region when the forward bias is increased?
A light ray is passing from air (refractive index \( \mu_1 = 1.0 \)) into water (refractive index \( \mu_2 = 1.33 \)). If the angle of incidence in air is 30°, what is the angle of refraction in water?
If \( L \) is the inductance and \( R \) is the resistance, then the unit of \( \frac{L}{R} \) is:
Force between two point charges \( q_1 \) and \( q_2 \) placed in vacuum at a distance \( r \, \text{cm} \) apart is \( F \). Force between them when placed in a medium having dielectric \( K = 5 \) at \( r/5 \, \text{cm} \) apart will be: