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Which quantity has the same dimensional formula as impulse?

A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image?

In a nuclear reaction, two deuterium nuclei fuse to form a helium nucleus. Which of the following correctly describes the reason for energy release?

Which phenomenon does a hologram use to create an image?

If the velocity-time graph of an object is a straight line inclined at an angle to the time axis, then:

A particle is projected such that its velocity vector sweeps equal angles with horizontal at equal time intervals. The motion is best described as:

In which medium can sound not travel?

A soap bubble shows colours when illuminated with white light. This is due to –