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PHYSICS

Physics
Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum?

Lamb-Rutherford experiment
Bunsen and Kirchhoff's experiment
Barkla's experiment on scattering of X-rays
Geiger and Marsdens experiment on scattering of alpha particles

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Physics
Erg cross Sec is the unit of

Angular momentum
Energy
Planck's constant
Linear Momentum

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Physics
Kirchhoff's laws are applicable to

C. circuits only
C. and A.C. circuits both
C. circuits only
None of these

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Physics
The device which converts AC to DC is

None of these
Amplifier
Oscillator
Rectifier

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Physics
Which of the following is a device designed to protect electrical devices from voltage spikes?

Surge protector
Current unloader
Heat protector
Voltage unloader

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