Physics
If a band is played on the moon the sound will

Be heard upto 10km from it
Be heard by us faintly
Reverberate
Not be heard at any distance at all from it

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Physics
A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

Decreasing the radius of the capillary tube
Increasing the height of water in the vessel
Increasing the radius of the capillary tube
None of these

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