Physics Test - ...

Hydraulic machines work under the Principle of:

The relationship between torque and angular momentum is analogous to:

Two waves are represented by \(y_{1}=a \cdot \sin (\omega t), a n d y_{2}=a . \cos \omega t\). If both the waves are superimposed then the resultant amplitude will be:

Average velocity of a particle executing$SHM$ inone complete vibration is :

Light of wavelength 4000 Å is incident on a metal plate whose function is 2eV. The maximum kinetic energy of emitted photoelectron will be:

Ria needs to calculate the number of turns that a solenoid should have, in order to induce a voltage of \(50 V\) provided that the magnetic flux in its cavity changes from \(70\) mWb to \(20\) mWb per time \(0.20\) s. What will be her answer?

A simple pendulum of length \(l\) and having a bob of mass \(M\) is suspended in a car. The car is moving on a circular track of radius \(R\) with a uniform speed \(v\). If the pendulum makes small oscillations in a radial direction about its equilibrium position, what will be its time period?

Calculate the Bohr radius of 3rd orbit of Be³⁺.

The scale of temperature in which the temperature is only positive is:

Select the correct statement regarding plane mirror: