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Q. The speed of sound in air depends on
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Q. The frequency used in TV and radar system lies in
Q. Line spectrum contains information about
Q. A flat mirror has a minimum height to see a full reflection of a person.
Q. One should not connect a number of electrical appliances to the same power socket because
Q. These waves cannot be transmitted through vacuum
Q. The time period of a pendulum depends on
Q. Which of the following options correctly explains the term heat budget?
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