If an observer is walking away from the plane mirror with 6 m / sec. Then the velocity of the image with respect to observer will be
6 m / sec
- 6 m / sec
12 m / sec
3 m / sec
Relative velocity of image with respect to object = 6 - (-6) = 12 m/sec
The difference between the apparent frequency of a source of sound as perceived by an observer during its approach and recession is 2% of the natural frequency of the source. If the velocity of sound in air is 300 m/sec, the velocity of the source is (It is given that velocity of source << velocity of sound)
An aero plane is flying horizontally at an altitude of 3000 ft directly over an observer. If it is flying witha speed of 300 ft/sec, the rate at which it is moving away from the observer when it is at 5000 ft away from the observer is _____
A source of sound of frequency 450 cycles/sec is moving towards a stationary observer with 34 m/sec speed. If the speed of sound is 340 m/sec, then the apparent frequency will be