Question # 1

If force and displacement are in opposite direction, the work done is taken as:

Choose an answer

Positive work

Negative work

Zero work

Infinite work

The center of mass of a sphere lies at:

Choose an answer

The axis of the sphere

Circumference of sphere

Center of the sphere

None of them

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Choose an answer

diffraction

beat

interference

resonance

In case of metallic conductors, the charge carriers are

Choose an answer

Protons

Electrons

Antiprotons

Positrons

Both A and B

Physicist George Simon ohm was a

Choose an answer

German physical

French physicist

Chinese physicist

Russian physicist

Due to the high value of the input resistance, practically, the value of the current which flows between the input terminals is

Choose an answer

zero

small

large

very large

Charge to mass ratio (e/m) of an electron is given by the relation

Choose an answer

e/m = 2V/Br²

e/m = 2V/B²r

e/m = 2V/B²r²

e/m = V/2B²r²

What is the current is a 2 x 10⁶ohm resistor having a potential difference of 2 x 10³volts?

Choose an answer

10^-1A

10^-2A

10^-4A

1 mA

As the light shines on the metal surface, the electrons are ejected

Choose an answer

slowly

instantaneously

either of these

none of these

In an interference pattern of Young's double slit(YDS) experiment:

Choose an answer

Bright fringesare wider than dark fringes

Dark fringes are wider than bright fringes

Both dark and bright fringes are of equal width

Central fringes are wider than the outer fringes

A high temperature, the proportion of shorter wavelengths radiation, emitted by the body

Choose an answer

decreases

first increases then decreases

increases

any one of them

A passenger lift accelerates upwards. What change would a passenger inside the lift standing on a weighing machine notice in the weight shown on the machine?

Choose an answer

a decrease in the reading on the scale

no change in the reading on the scale

an increase in the reading on the scale

an increasing in the weight

According to the Hooke's law the force required to change the length of a wire by '1' is proportional to:

Choose an answer

1^-2

1^-1

1

In the thin film, the path difference of two reflected ray depends upon

Choose an answer

Thickness of the film

Nature of the film

Angle of incidence

All of these

The splitting of white light into several colors on passing through a glass prism is due to

Choose an answer

Refraction

Reflection

Interference

Diffraction

The relative permitivity ∈_r for teflon is

Choose an answer

2.1

2.4

2.9

3.0

A person walks first 10 km north and 20 km east.then the resultant vector is

Choose an answer

22.36 km

22.46 km

25.23 km

20.36 km

A circuit that converts Pulsating DC into smooth DC contain :

Choose an answer

Filter

Capacitor

Inductor

LC circuit

Which of the following is not conservative force

Choose an answer

Electric

Gravitational

Elastic spring force

None

The viscosity of fluid is described by

Choose an answer

Resistive forces of fluid

Frictional effect between different layers of a fluid

Flowing speed of fluid

None of these

Gauss s law is applicable by considering Gaussian surface The Gaussian surface must has shape which is

Choose an answer

Spherical

Cylindrical

Box type

Any arbitrary closed shape

The direction of velocity is along the direction of

Choose an answer

Motion

Displacement

Velocity

None of these

More Classes

Other Links

Physics General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer