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Physics

Physics
Ultrasound devices operate with minimum frequency from

60 kHz
35 kHz
45 kHz
20kHz

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

Same
Decreases
Increases
Double

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Physics
The group of solar cells joined together in a definite pattern is called a

Battery
Solar cooker
Solar heater
Solar cell panel

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Physics
Quality of a musical note depends on

Harmonics present
Fundamental frequency
Amplitude of the wave
Velocity of sound in the medium

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Physics
Steel is more elastic than rubber because it :

Requires larger deforming force
Is harder than rubber
Is deformed very easily
Is never deformed

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Physics
In case of uniform circular motion, the acceleration is

Constant in magnitude and directed radially inwards
Variable in magnitude but tangential to the circle
Zero
Variable in magnitude but constant in direction

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MORE MCQ ON Physics

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