Physics Mock Te...

Identify the conductor having the highest resistivity.

Hydrogen atom does not emit X-rays because

An electric dipole in a constant external electric field has net force zero on it. This means

In the Rutherford’s Model of the Atom, what was the observation due to alpha particles scattering?

A wavefront is defined as a surface of ______________ phase

An experiment had two wires P and Q of the same resistance at room temperature. When the wires were heated, it was noticed that the resistance of wire P increased and that of wire Q decreased. What can be inferred from this experiment?

Consider the following statements

1. Kirchhoff's Voltage Law is based on Kirchoff’s second law.

2. Kirchoff’s second law represents the conservation of energy.

Which of the following statements is/are correct?

In a Van de Graaff generator, the potential difference between the surfaces of the small and large spherical conductors is independent of

For a myopic eye, the near point ___________

The magnification of a compound microscope is

In Coulomb’s law, \(F = \frac{{k\left( {{q_1}{q_2}} \right)}}{{{r^2}}}\), constant k is expressed as (consider air as the medium):

What is the work done in moving a charge of 5C between two points having a potential difference of 11V?

The output of a NAND gate is 0 if the inputs are _______.

When a coil moves towards a stationary magnet, the induced emf does not depend on: 

Which of the following options is false regarding Ohm's law?

In the series RLC circuit if the current is leading the voltage, then which of the following condition is correct? (All the symbols have their usual meaning)

The process of super imposing message signal on high frequency carrier wave is called

In the photoelectric effect ejection of electrons from the surface of a metal takes place when

Which of the following equation shows the relationship between current (i) and drift velocity (V_d). (n is number of free electrons/m³, A is the cross-sectional area, e is change on an electron, R is resistance)

What should be the angle between magnetic moment and magnetic field for maximum work done in a magnetic field?

Which of the following is an application of a photodiode?

Electromagnetic waves are transverse in nature is evident by:

An object is placed at the Centre of the curvature of a concave mirror of a focal length of 16 cm. If the object is shifted by 8 cm towards the focus, the nature of the image would be 

The electromagnetic waves can be produced by-

Impedence of a coil is 100 ohm at frequency 50 Hz, then its impedence on 150 Hz is:

When the space between the parallel plate capacitor is filled with a dielectric, than the capacitance of the capacitor will:

Which one among the following waves are called waves of heat energy?

If the frequency of the AC voltage is increased in the circuit containing a capacitor, then the capacitive reactance will:

Which of the following is NOT one of Faraday's laws?

Electric flux can be determined by:

Inside a hollow conducting sphere electric field

A Nicol prism is based on the principle of

Refer to the following diagram to calculate the ammeter reading (in A).

Binding energy of a nucleus is:

In Youngs experiment, when the distance between slit and screen is doubled, while separation of slit is halved, then fringe width will be:

The electric field strength and  electrostatic potential due to a dipole depends upon distance r as

A moving electrical charge produces:

If the radius of a circular loop of 6 turns is 5 cm and the loop is carrying the current of 10 ampere then what is the magnitude and direction of the magnetic dipole moment?

A β-particle is emitted by radioactive nucleus at the time of conversion of ________.

The outside rear-view mirror of modern automobiles is marked with warning “objects in mirror are closer than they appear”. Such mirrors are

A magnet is freely suspended in a constant magnetic field of strength B. How much work will be done if the magnet is deflected by an angle 90° from the initial direction?

Total internal reflection of a ray of light is possible when the (i_c = critical angle, i = angle of incidence)

The torque on a rectangular coil placed in a uniform magnetic field is large when the

A message signal of frequency 20 MHz is to be transmitted. Which of the following mode of propagation is the most suitable?

The distance between the plates of a parallel plate capacitor is increased then the capacitance will-

The resistance of a metallic conductor increases with _________ in temperature.

The resistance of a p - n junction in forward bias is –

Which of the following accelerate the particles in cyclotron?

When 4 amp current flows through a motor then power consumed is 20 watt, and resultant potential difference is 220 volt. The applied e.m.f. is :