Physics
In a ________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation

Transverse
Rolling
Longitudinal
Field

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Physics
A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps

It will fall down at the same place where the string breaks
None of these
It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
The ball will travel towards the center of the circle and fall down

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Physics
The sensation of weightlessness in a spacecraft in an orbit is due to the

Acceleration in the orbit which is equal to the acceleration due to gravity outside
Absence of gravity outside
Presence of gravity outside but not inside the spacecraft
Fact that spacecraft in the orbit has no energy

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