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Mohan traveled five cities (A, B, C, D and E) starting from home by a car which has a mileage such that the car can travel 10 km in 1 liter petrol. Distance between city A and B is twice the distance between home to city A. Distance between city B and C is thrice the distance between home to city A. Distance between city C and D is 100. Distance between city D and E is 1.5 times than the distance between B and C. Average distance traveled by Mohan was 41 km between five cities. Find how much petrol was needed by Mohan to travel from city B to D.
To hear an echo, the minimum distance requires between the source and the reflecting surface is
What will be the output of the following PHP code?
What should be the minimum distance between the observer and the reflector in order to hear an echo?
How much should minimum distance be between the source of sound and reflecting surface, so that an echo can be heard clearly?
Which of the following statements is/are true about the types of gauge in Indian Railways? I. In Broad gauge. the clear distance between the inner faces of two rails is 1.676 m II. In Meter gauge. the clear distance between the inner faces of two rails is 1.240 m III. In Narrow gauge. the clear distance between the inner faces of two rails is 0.762 m
To hear a distinct echo, what is the minimum time interval required between the original sound and the echo?
A source of frequency 50Hz is moving towards an observer with a deceleration of 2m/s2. If its initial speed is 20m/s, what will be the maximum frequency heard by the observer? Initial distance between source and observer is 100m. Speed of sound = 330m/s.
At 250C, if you hear an echo in 0.650 seconds, how far away is the reflecting surface?
An echo is heard when minimum distance of the reflecting surface is