During an experiment, a signal from a spaceship reached the ground station in five minutes. What was the distance of the spaceship from the ground station? The signal travels at the speed of light, that is, `3 xx 108 m s^(-1)`

An echo was heard after 3s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 ms^-1 ?

Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 108 m/s .

Light enters from air to diamond which has refractive index of 2.42. Calculate the speed of light in diamond . The speed of light in air is 3.0 xx 10^8 m s^-1

A car is moving from rest, After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm, then find the linear distance travelled in 6 minutes.

Two rails of a railway track insulated from each other and the ground are connected to a milli voltmeter. What is the reading of millivoltmeter when the train travels at speed of 180 km/h along the track, given that the horizontal component of earth's magnetic field is 0.2*10^(-4) wb/m and the rails are separated by 1 meter.

A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sbund in water if the distance of.the object from the submarine is 3625. m

With what velocity a body has to be thrown up so that it can rise up to a height of 10 metres from the ground? How much time will fake to reach the highest point?

A tuning fork oscillates 350 times in second. What is the distance travelled by the sound wave emitted by the tuning fork after its 5 oscillation. The speed of sound in air is 350 m/s

A man’stationed between two hills fires a gun. He hears the first echo after 1 s and the second after 2 s. What is the distance between the hills. The speed of sound in air is 330 m/s.