Home
Class 12
PHYSICS
At its closet approach, the distance bet...

At its closet approach, the distance between the mars and the earth is found to be 60 million km. When the planets are at this closet distance, how long would it take to send a radio message from a space probe of mars to earth?

A

5 s

B

200 s

C

0.2 s

D

500 s

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CATHODE RAY, PHOTOELECTRIC EFFECT AND X-RAYS

    BITSAT GUIDE|Exercise BITSAT Archives|6 Videos
  • ATOMIC STRUCTURE

    BITSAT GUIDE|Exercise BITSAT Archives|4 Videos
  • CURRENT ELECTRICITY

    BITSAT GUIDE|Exercise Bitsat Archives|26 Videos

Similar Questions

Explore conceptually related problems

At the closest approach, the distance between Mars and Earth is found to be 58 million km . When planets are at this closest distance, how long would it take to send a radio message from a space probe of mars to earth?

If light takes 5 yr to reach the Earth from a Star. Find the distance between that Star and the Earth in km.

The energy from the sun reaches just outside the earth's atmoshphere at a rate of 1400 W m^(-2) . The distance between the sun and the earth is 1.5 xx 10^(11) m . (a) Calculate the rate at which the sum is losing its mass. (b) How long will the sun last assuming a constant decay at this rate? The present mass of the sun is 2 xx 10^(30) kg

In an imaginary planetary system, the central star has the same mass as our sun, but is brighter so that only a planet twice the distance between the earth and the sun can support life. Assuming biological evolution (inculuding aging process etc.) on that planet similar to ours, what would be the average life span of a 'human' on that planet in terms of its natural year ? The average life span of a human on the earth may be taken ot be 70 years.

In an imaginary planetary systam, the centrel star has the same mass as our sun, but is much brighter so that only a planet twice the distance between the Earth and sun can support life. According to bilogical evolution (including aging processes etc.) on that planet similar to ours, what would be the average life span of a 'human' on that planet in terms of its natural life ? The average life span of a human on the Earth may be taken to be 70 years.

A rocket is fired from the earth to the moon. The distance between the earth and the moon is r and the mass of the earth is 81 times the mass of the moon. The gravitational force on the rocket will be zero when its distance from the moon is

A radio station is broadcasting programmes as 100 MHz frequency if the distance between the ratio station and the received set is 300 km how long the signal would take in reach the set from the radio station ? Also calculate the wavelength and wavelength of radio waves