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Physics

Physics
What is the SI unit of intensity of sound?

Heartz
Decibel
Tesla
Newton

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Physics
'Parsec' is the unit measurement of

Density of stars
Brightness of heavenly bodies
Orbital velocity of giant stars
Astronomical distance

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Physics
The reflector of a search light is a :

Convex mirror
Concave mirror
Plane mirror
Cylindrical mirror

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Physics
The ''four stroke petrol engine' is based on

Otto-cycle
Carnot-cycle
Diesel-cycle
Boyle's-cycle

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Physics
What device converts light energy to electrical energy?

Heliostats
Thermocouple
Photodiode
Photovoltaic cell

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Physics
When a barometer reading suddenly recedes, it indicates that climate–

Will remain cold
Will be very warm
Will be extremely stormy
Incessant rain for at least 48

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MORE MCQ ON Physics

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