| 1 |
The light of which travels through glass with the minimum speed is
|
Red<br>
yellow <br>
Green <br>
Violet<br>
|
| 2 |
If two electrically charged bodies are connected by a wire, then the electric current will not flow if
|
Both have the same capacity <br>
Both have the same temperature <br>
Both have the same potential <br>
None of these<br>
|
| 3 |
The special filters used to reduce pollutants form the exhaust of a car are called
|
Catalytic Converter <br>
Water jacket <br>
Exhaust Manifold <br>
Baffle Plate<br>
|
| 4 |
Which of the following is an example of class-I Lever?
|
Pliers <br>
Nut Cracker <br>
Tongs <br>
All of these<br>
|
| 5 |
One complete set of positive and negative values of a alternating quantity is known as
|
Phase <br>
Time period<br>
Frequency <br>
Cycle<br>
|
| 6 |
The velocity ration of a screw jack is
|
2pI/P
2pp/I
2ppI
2P/pI
|
| 7 |
Solder is an alloy of
|
Brass and copper <br>
Aluminum and brass <br>
Aluminum and zinc<br>
Tin and lead<br>
|
| 8 |
When the length of a pendulum in a clock is increased, then
|
The period increases and the clock <br>
The period increases and the clock gains time <br>
The period decreases and the clock gains time <br>
the period remains constant and the clock maintains correct time <br>
|
| 9 |
Echoes are due to
|
Refraction of sound waves <br>
Polarsation of sound waves <br>
Diffraction of sound waves <br>
Reflection of waves<br>
|
| 10 |
The force that causes a spring to eventually return to its normal length is called
|
Gravitational force<br>
Potential force<br>
Restoring force <br>
Spring force<br>
|
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