Board Madhya Pradesh Board of Secondary Education [MPBSE] Class Class 12th / HSC Download Model Question Paper Year 2021-22 Subject Physics Document Type PDF Official Website http://www.mpbse.nic.in/default.htm

## MPBSE Class 12th Physics Model Question Paper

Madhya Pradesh Board of Secondary Education [MPBSE] Class 12th / HSC Physics Model Question Paper 2021-22

## MPBSE Class 12th Physics Sample Questions

Fill in the blanks:
A) The resistance of an ideal voltmeter is …………………………….
B) Dynamo is based on the principle of ……………………………….
C) Ultraviolet rays was discovered by………………………………..
D) The electromagnetic waves are…………………………………….
E) Blue colour of sky is due to ………………………………..
F) The cause of a thin film to be seen coloured in white light is ………………..
G) NOT GATE is also called …………………………………………..

Write the answer of each question in one sentence.
• Write the S.I. unit of intensity of electric field.
• 2𝛺 and 3𝛺 resistors are connected in series. What will be the equivalent recistance of this combination ?
• On what principle does a transformer work?
• What is the frequency of electric current used in India in domestic purpose?
• Name the radiation useful for seeing distant objects in fog.
• Write Snell’s law.
• What is the potential barrier of P-N Junction diode made by silicon semiconductors?
• The vehicle carrying inflammable substances have metallic strings suspended from them touching the ground, Why?
• Define SI unit of capacitance.
• When a vehicle’s engine is started its headlights become dim for a moment. Why?
• What is the nonohmic resistance? Write its one example.
• A deutron and a proton are accelerated by the cyclotron. Can both be accelerated with the same oscillator frequency? Give reason to justify your answer.
• Write the Fleming’s left hand rule.
• Write any two differences between self induction and mutual induction.
• A spark is produced when an electrical circuit is switched off suddenly. Why?
• How does an air bubble behaves in water and why?
• Define conjugate foci for a lens.
• The signal of danger is red. Why?
• Write any two differences between interference and diffraction of light.

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