Does the focal length of the curved mirror changes if it is immersed into water ? Explain in brief. Kamal Dhungel 9 January 2022 No Comments … View More Does the focal length of the curved mirror changes if it is immersed into water ? Explain in brief.
Short question related to waves Kamal Dhungel 8 January 2022 No Comments … View More Short question related to waves
Short question related to optics Kamal Dhungel 8 January 2022 No Comments … View More Short question related to optics
In a machine run saw, a high pitch is heard initially and a low pitch sound is heard after the saw touches the wood. Explain why? Kamal Dhungel 30 December 2021 No Comments … View More In a machine run saw, a high pitch is heard initially and a low pitch sound is heard after the saw touches the wood. Explain why?
An airplane mechanic notices that the sound from a twin-engine aircraft varies in loudness when both engines are running. What could be causing this variation from loud to soft and vice versa? Kamal Dhungel 30 December 2021 No Comments … View More An airplane mechanic notices that the sound from a twin-engine aircraft varies in loudness when both engines are running. What could be causing this variation from loud to soft and vice versa?
Two loudspeakers have been stalled in an open space to listen to a speech. When both the speakers are in operation, the listener sitting at a particular place receives very feeble sound. What can be the reason for it? Kamal Dhungel 30 December 2021 No Comments … View More Two loudspeakers have been stalled in an open space to listen to a speech. When both the speakers are in operation, the listener sitting at a particular place receives very feeble sound. What can be the reason for it?