Multiple Choice Identify the
choice that best completes the statement or answers the question.
|
|
1.
|
According to quantum theory of light, photons of light are emitte in the
forms of _________
a. | Waves | b. | Magnetic waves | c. | Packets of energy
| d. | None |
|
|
2.
|
Convace mirror are used as __________ in telescope.
a. | Convex | b. | Concave | c. | Dahanay
| d. | None |
|
|
3.
|
Light is a form of ________
a. | Mass | b. | Heat | c. | Temperatue
| d. | Energy |
|
|
4.
|
In concave mirrors, if a bady is placed between focus “F” and
pole”2p” then its image will be on __________________ side of mirror
a. | Virtule | b. | Real | c. | Back | d. | Infront |
|
|
5.
|
At 4 the density of water is _________
a. | Lesser | b. | Equal | c. | Greater
| d. | No change |
|
|
6.
|
Heat is a form of _________ which flows from a hot body to cold body.
a. | Gas | b. | Energy | c. | Matter
| d. | Oil |
|
|
7.
|
On heating a body, the increase of a body is called ____________
a. | Longitudinal strain | b. | Stress | c. | Strain | d. | Longitudinal Stress
|
|
|
8.
|
The travel sound from one place to another place __________ is used.
a. | Dielectric | b. | Medium | c. | Air
| d. | Wax |
|
|
9.
|
An interesting example of resonance is ___________
a. | Stone | b. | Harmonium | c. | Guitar
| d. | Swing |
|
|
10.
|
______________ is also a peridic motion.
a. | Longitudinal | b. | Wave motion | c. | To & fro
motion | d. | SHM |
|
|
11.
|
____________ is an instrumnet which makes work very easy.
a. | Machine | b. | Radio | c. | Liver
| d. | None |
|
|
12.
|
The ratio of weight and force is called __________
a. | Mechanical advantage | b. | Physical Advantage | c. | Chemicla
Advantage | d. | None of above |
|
|
13.
|
If we distrub a body which is in stable state then its ___________ cecomes
higher.
a. | Below | b. | Center of gravity | c. | Above
| d. | None |
|
|
14.
|
The energy of body due to its motion is called __________ energy.
a. | Potential | b. | Chemical | c. | Light
| d. | Kinetic |
|
|
15.
|
SHM have _________ characteristic.
a. | Loudness | b. | Pitch | c. | Qaulity | d. | All above
|
|
|
16.
|
The energy of body due to its motion is called __________ energy.
a. | Potential | b. | Chemical | c. | Light
| d. | Kinetic |
|
|
17.
|
______________ is an example of simple machine.
a. | Sewing machine | b. | Petrol engine | c. | Bicycle
| d. | Pulley |
|
|
18.
|
The waves produced in air due to vibrating body are called ________ waves.
a. | Longitudinal | b. | Transverse | c. | Magentic
| d. | Electrostatic |
|
|
19.
|
The velocity of sound at normal temprature pressure is _________ m/sec
|
|
20.
|
G is called __________
a. | Gravitational attraction | b. | Gravitational acceleration
| c. | Gravitational Force | d. | Gravitational constant
|
|
|
21.
|
______________ is a vector quantity.
a. | Mass | b. | Torque | c. | Distance
| d. | Time |
|
|
22.
|
The velocity of sound is ______________ then the velocity of light.
a. | Less | b. | Greater | c. | Equal
| d. | None |
|
|
23.
|
If we reduce the frequency of vibrating body then the pitch of sound produced
will becomes ________
a. | Less | b. | Greatre | c. | Equal
| d. | None |
|
|
24.
|
In longitudinal waves the distance between two trough is called ____________.
a. | Displacement | b. | Wave length | c. | Velocity
| d. | Speed |
|
|
25.
|
The waves in which the direction of the vibrational motion of the particle of
medium is prependule to direction of motion of wavesae callec __________ waves.
a. | Longitudinal | b. | Transverse | c. | Periodic
| d. | None |
|
|
26.
|
The longitudinal waves consits of ___________
a. | Crest | b. | Trough | c. | Crest &
Trough | d. | None |
|
No comments:
Post a Comment