AP EAPCET 2021 - 20th August Evening Shift

A change of \(0.04 \mathrm{~V}\) takes place between the base and the emitter when an input signal is connected to the common emitter transistor amplifier. As a result, \(20 ~\mu \mathrm{A}\) change takes place in the base current and a cha...

In case of a forced vibration, the resonance wave becomes very sharp when the

Which year was declared as the International
year of Physics?

One angstrom \((\mathop A\limits^o )\) is equal to

The dimensions of stress is

The wavefront is a surface in which

Two waves are represented by
\(x_1=A \sin \left(\omega t+\frac{\pi}{6}\right) \text { and } x_2=A \cos \omega t \text {. }\)
Then, the phase difference between them is

An engine develops 20 kW of power. How
much time will it take to lift a mass of 200 kg
to a height of 40 m? (g = 10 ms\(^{-2}\)
)

Two bodies having kinetic energy in the ratio
4 : 1, are moving with same linear velocity.
The ratio of their masses is

Water is falling on the blades of a turbine from a height of \(25 \mathrm{~m}\) and \(3 \times 10^3 \mathrm{~kg}\) of water pours on the blade per minute. If the whole of energy is transferred to the turbine, then power delivered is