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A radio signal sent towards the distant ...

A radio signal sent towards the distant planet, returns after "t" s. If "c" is the speed of radio waves then the distance of the planet from the Earth is...............

A

`c t/2`

B

`ct^(2)`

C

2ct

D

`c^(2) (t^(2))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`c t/2`
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FULL MARKS-NATURE OF PHYSICAL WORLD AND MEASUREMENT -ADDITIONAL QUESTIONS SOLVED (MULTIPLE CHOICE QUESTIONS)
  1. Which of the following is in increase order?

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  2. 10^(-18) is called as ...........

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  3. A radio signal sent towards the distant planet, returns after "t" s. I...

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  4. Find odd one out……………

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  5. The shift in the position of an object when viewed with two eyes, keep...

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  6. Chandrasekar limit is……..... times the mass of the Sun.

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  7. The smallest physical unit of time is…………..

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  8. Size of atomic nucleus is …………..

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  9. Time interval between two successive heart beat is in the order of ………...

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  10. Half life time of a free neutron is in the order of……………..

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  11. The uncertainty contained in any measurement is…………….

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  12. Zero error of an instrument is a………….

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  13. Error in the measurement of radius of a sphere is 2%. Then error in th...

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  14. Imperfections in experimental procedure gives …........ error.

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  15. Random error can also be called as .............

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  16. To get the best possible true value of the quantity ……...…. has to be ...

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  17. The error caused due to the shear carelessness of an observer is calle...

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  18. The uncertainty in a measurement is called as…………

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  19. The difference between the true value and the measured value of a quan...

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  20. If a(1),a(2),a(3)...... a(n) are the measured value of a physical quan...

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