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Physics

Physics
Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

2000
0.016
0.008
1000

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Physics
Mud houses are cooler in summers and warmer in winters as compared to brick houses because

Mud is a good conductor
Mud is a bad conductor
Mud is a poor insulator
Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters

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Physics
Contact force is another name for ________

Electrostatic force
Magnetic force
Muscular force
Friction

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Physics
Eddy current is generated by

Direct Current
Conduction
Convection
Induction

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Physics
Which of the following is/are part of the Classical Physics?

None
Optics
Thermodynamics
Both a and b

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Physics
After long periods of use, a grey spot develops on the inside of a bulb. This is because

The heat of the bulb scorches the glass at the top
The tungsten filament evaporates and collects there
Dust inside the bulb condenses on the top
Glass undergoes a change due to the heat

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