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QAIPMT-2005-Ph-2538: NEET 2005 Physics - Class 12 AIPMT-2005-Ph-2538 Solution: A point source emits sound equally in all directions in a…
A point source emits sound equally in all directions in a non-absorbing medium. Two points P and Q are at distances of 2 m and 3 m respectively from the source. The ratio of the intensities of the waves at P and Q is 3:2 2:3 9:4 4:9
Multiple Choice Options
- A along Oy
- B opposite to Oy
- C along Ox
- D opposite to Ox
Step-by-Step Verified Solution
The direction of B _ is due to i is acting inwards i.e. into the paper along ( _ k ^ ) .
_ The magnetic force
F _ = Q ( v _ _ B _ ) = Q ( v _ i ^ ) _ B ( _ k ^ ) = Q v B j ^
So, F _ is along Oy direction.