Question # 1

The first series which was identified in the spectrum of hydrogen is called:

Choose an answer

Lyman series

Balmer series

Paschen series

Brackett series

Pfund series

The body of physics involves

Choose an answer

Structure of space and time

Interaction of electromagnetic radiation with matter

Both of them

Chemical Changes

The doped semi-conductor materials are known as

Choose an answer

intrinsic semi-conductor

extrinsic semi-conductor

either of them

none of them

Acceleration produced in a body by a force varies

Choose an answer

inversely as the applied force

directly as the applied force

directly as the mass of the body

none of them

An induced current can be produced by

Choose an answer

Constant magnetic field

Changing magnetic field

Varying electric field

Constant electric field

None of these

Two forces each of 10 N act on a body, if the force are inclined at 30° and 60° respectively with x-axis, then x-component of their resultant is:

Choose an answer

20 N

13.66 N

10 N

8.66 N

Angular velocity is a:

Choose an answer

Scalar quantity

Vector quantity

Complex quantity

None of these

When quarter of a circle is completed, the phase of vibration is:

Choose an answer

90°

180°

45°

360°

Electric potential of earth is taken to be zero because the earth is good

Choose an answer

Semiconductor

Conductor

Insulator

Dielectric

Neon gas have three isotopes whose atomic numbers are

Choose an answer

20, 24 , 23

20, 21 , 22

20, 19 , 21

none of these

When angular acceleration is positive, the body rotates:

Choose an answer

Slower

Slowest

Faster

None of these

According to Huygen's principle, every point of a wavefront may be considered as a source of

Choose an answer

primary wavelets

secondary wavelets

either of them

both of them

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10^-10m for first order diffraction is

Choose an answer

4 x 10^-10m

2 x 10^-10m

0.2 x 10^-10m

20 x 10^-10m

The more general form of second law of motion is

Choose an answer

F = ma

F x t = mV_f- mV_i

Both

None of these

Carnot engine is ____________ heat engine.

Choose an answer

A reversible

An irreversible

An ideal

Both A and C

A compound microscope is consists of an eye piece of focal length

Choose an answer

Short

Very short

Large

Very large

An INTEASAT VI satellite operates at microwave frequencies of

Choose an answer

4, 6, 13, 16 GHZ

4, 5, 11, 13 GHz

4, 6, 11, 18 GHz

4, 6, 11 and 14 Ghz

The typical speed of Earth around the sun is

Choose an answer

29700 ms^-1

29600 ms^-1

29500 ms^-1

29400 ms^-1

The laser light used in an optical fiber system has a wavelength equal to

Choose an answer

3μm

5μm

1.3μm

6μm

The expansion or compression must take place slowly in order to keep constant

Choose an answer

Volume

pressure

Temperature

None of these

Thermal and mechanical equilibrium is maintained all the time so that each process is

Choose an answer

Reversible

Perfectly reversible

Irreversible

None of these

The image formed by an eyepiece of compound microscope is

Choose an answer

Real and diminished

Real and enlarged

Virtual and enlarged

Virtual and diminished

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