Physics
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their:
(i) intensities and
(ii) frequencies?
Related Questions
The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of the ray PQ till it emerges out of the block. [Write necessary angles.]
![The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of the ray PQ till it emerges out of the block. [Write necessary angles.] ICSE 2019 Physics Solved Question Paper.](https://cdn1.knowledgeboat.com/img/abp10/5/icse-2019-physics-question-paper-solved-2e-1200x730.png)
(i) If the lens is placed in water instead of air, how does it's focal length change?
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How does an increase in the temperature affect the specific resistance of a :
(i) Metal and
(ii) Semiconductor?
(i) Define resonant vibrations.
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