Match the following
Column-I | Column-II |
(i) A bus sounds a whistle at frequency f. The frequency heard by the driver | [A] Independent of the speed of bus |
(ii) Intensity of sound of frequency f and amplitude A | [B] Depends on f |
(iii) The frequency of siren of bus of frequency f and amplitude A and which is moving towards observer. Then frequency heard by observer depends upon | [C] Depends on A |
(iv) A bus is moving with speed v now driver increases the speed of bus to 2v, then speed of sound depends upon | [D] None |
Text Solution
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Ans.
(i) [B],[A]
(ii) [A],[B],[C]
(iii) [B]
(iv)[A],[B]
Sol.
(i) Depends on f, Independent of the speed of bus
(ii) Independent of the speed of bus, Depends on f, Depends on A
(ii) Depends on f,
(iv) Independent of the speed of bus, Depends on
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