MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Physics

A particle executes SHM with an amplitude of 10 cm and frequency 2 Hz. At t = 0, the particle is at a point, where potential energy and kinetic energy are same. The equation of displacement of particle is ______.

A simple pendulum of length L has mass m and it oscillates freely with amplitude A. At the extreme position, its potential energy is (g = acceleration due to gravity)

For a gas, `"R"/"C"_"v"=0.4`, where R Is universal gas constant and C_v is the molar specific heat at constant volume. The gas is made up of molecules, which are ______

The mass of the earth is 81 times the mass of the moon and the distance between their centres is R. The distance from the centre of the earth, where gravitational force will be zero is ______.

An open organ pipe and a closed organ pipe have the frequency of their first overtone identical. The ratio of length of open pipe to that of closed pipe is ______.

A diatomic gas undergoes adiabatic change. Its pressure 'P' and temperature 'T' are related as p ∝ T^x, where x is ______.

A parallel plate air condenser of capacity 10 µF is charged to a potential of 1000 V. The energy of the condenser is ______

A simple pendulum of length I has a bob of mass m. It executes SHM of small amplitude A. The maximum tension in the string is (g = acceleration due to gravity)

In an LCR circuit, at resonance ______

The length of a simple pendulum is increased by 44%. The percentage change in its time period is ______.

Out of the following graphs, which graph shows the correct relation (graphical representation) for LC parallel resonant circuit?

Two identical strings of length I and 2I vibrate with fundamental frequencies N Hz and 1.5 N Hz, respectively. The ratio of tensions for smaller length to large length is ____________.

When open pipe is closed from one end third overtone of closed pipe is higher in frequency by 150 Hz, then second overtone of open pipe. The fundamental frequency of open end pipe will be ____________.

At the poles, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator, for same setting to produce resonance with same fork. the vibrating length of wire ______.

A bob of a simple pendulum has mass m and is oscillating with an amplitude a. If the length of the pendulum is L, then the maximum tension in the string is [cos 0° = 1, g = acceleration due to gravity]

The fundamental frequency of a closed pipe is 400 Hz. If `1/3`rd pipe !s tilled with water, then the 3 frequency of 2nd harmonic of the pipe will be (neglect and correction).

Two open pipes of different lengths and same diameter in which the air column vibrates with fundamental frequencies 'n₁', and 'n₂' respectively. When both pipes are joined to form a single pipe, its fundamental frequency will be ______.

If 'C_p' and 'C_v' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'C_p' is equal to ______.

In a fundamental mode the time required for the sound wave to reach upto the closed end of a pipe filled with air is 't' second. The frequency of vibration of air column is ________.

In series resonance, LCR circuit, below the resonant frequency, the circuit is ____________.