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Physics

Physics
Instruments for measuring Solar Radiation?

Ammeter
Dynamometer
Pyranometer
Anemometer

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Physics
Bending of light rays in denser medium is termed as:

Dispersion
Refraction
Reflection
Deflection

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Physics
The purpose of choke in a fluorescent lamp is :

To increase the current flow
Ro decrease the voltage momentarily
To decrease the resistance
To decrease the current flow

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Physics
In a nuclear reactor, one of the following is used as a fuel.

Radium
Uranium
Coal
Diesel

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Physics
If the spinning speed of the earth is increased then the weight of body at the equator

Increases
Double
Decreases
Same

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Physics
Red light has a wavelength of 70 A°. In "nm" it is

700 nm
0.07 nm
70 nm
7 nm

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