Question # 1

Which waves of the following has highest frequency?

Choose an answer

Radio waves

Micro waves

Light wave

Sound wave

Watt is equal to:

Choose an answer

Coulomb per second

Newton per second

Volt per second

Joule per second

If a ray of light is glass is incident on an air surface at an angle greater than the critical angle, the ray will.

Choose an answer

refract only

reflect only

partially refract and partially reflect

Diffract only

Snell' law is:

Choose an answer

n = sin<x/sin <r

n=sin <i/sin<r

n = sin <r/sin<i

<i/<r

Coulomb's law is mathematically stated as:

Choose an answer

F = k q1 q2/r3

F = k q2 q2 / r2

F = k q1 q2 / r

F = k q1 q2 / r2

When a current carrying conductor is placed in magnetic field at right angle to it. The direction of force acting upon it is:

Choose an answer

The same as direction of field

Opposite the direction of field

Makes an angle of 45^owith the current

At right angle to both the field and the current.

One of the isotopes of uranium is²³⁸U₉₂the number of neutrons in the isotopes is.

Choose an answer

92

146

238

330

Which one is a safety device?

Choose an answer

Switch

Fuse

Circuit breaker

Both B and C

According to Fleming's left hand rule the direction of force on the conductor is given by:

Choose an answer

Thumb

Fore finger

Middle finger

None of these

Example of mechanical waves is:

Choose an answer

Radio waves

X-rays

Light waves

Sound waves

A device which has two ways communication is:

Choose an answer

Television

Radio

Hard disk

Mobile phone

Which form of energy is sound:

Choose an answer

Electrical

mechanical

Thermal

Chemical

The lines will be in the form of concentric circles, if conductor is:

Choose an answer

Circular

Straight

Solenoid

None of these

More Classes

Other Links

10th Class Physics English Medium KPK Boards Online Mcqs 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