MCQ Questions of Sound With Solutions Class 9 | Physics
A long flexible spring is called slinky and tension in it is directly proportional to its extension or compression. Radio waves are electro magnetic waves.
A long flexible spring is called slinky and tension in it is directly proportional to its extension or compression. Radio waves are electro magnetic waves.
Charcoal is mainly carbon. It is used for domestic heating purposes. It is prepared by the strong heating of wood in closed vessels in the absence of air.
Anion is larger in size as compared to neutral atom because it contains more electrons. Mass number may be equal to atomic number for Hydrogen.
Positive charge always moves towards the region at lower potential from higher potential. Battery is used to maintain potential difference.
What happens to a moving electron beam when a uniform magnetic field is applied at right angles to it?
A boy sitting on the topmost berth in the compartment of a train which is just going to stop on a railway station,
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