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PHYSICS

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

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

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Physics
Erg cross Sec is the unit of

Planck's constant
Energy
Angular momentum
Linear Momentum

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Physics
Kirchhoff's laws are applicable to

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

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Physics
The device which converts AC to DC is

Oscillator
Amplifier
None of these
Rectifier

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

Voltage unloader
Heat protector
Current unloader
Surge protector

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