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A soap bubble shows colours when illuminated with white light. This is due to –
What is inertia?
In which medium can sound not travel?
Which of the following pair regarding sound is correct?
I. Loudness – depends on amplitude
II. Shrillness – depends on frequency
An image formed by a plane mirror is ______.
Which of the following is not an insulator?
What would happen to the weight of a body in a lift moving upward with uniform speed?
Which of the following is NOT a conductor of electricity?
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
A 220 V, 100 W bulb is connected to a 110 V source. Calculate the power consumed by the bulb