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The radius of two circles are r and 4r w...

The radius of two circles are r and 4r what will be the ratio of their Area and perimeter.

A

`(1)/(16)`

B

`1/4`

C

`(16)/(1)`

D

`4/1`

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The correct Answer is:
A
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MOTION-UNITS AND DIMENSIONS, BASIC MATHEMATICS -Exercise - 1 (Objective Problems) (SECTION - C : Basic Maths )
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  2. Internal radius of a ball is 3 cm and external radius is 4 cm. What wi...

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  3. Find value of (1.01)^(1//2) according to binomial theorem

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  4. Draw graph for following equation : v=v(0)-at

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  5. Find the derivative of given functions w r.t. corresponding independen...

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  6. s=5t^(3)-3t^(5)

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  7. Find the derivative of given function w.r.t. corresponding independent...

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  8. Find the derivative of given function w.r.t. corresponding independent...

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  9. Find the first derivative & second derivative of given functions w.r.t...

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  10. Find the first derivative & second derivative of given functions w.r.t...

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  11. Find derivative of given functions w.r.t. the independent variable x. ...

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  12. Find derivative of given functions w.r.t. the independent variable x. ...

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  13. Find derivative of given functions w.r.t. the independent variable x. ...

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  14. Find derivative of given functions w.r.t. the independent variable x. ...

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  15. Suppose that the radius r and surface area S=4pi r^(2) of a sphere a...

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  16. Particle 's position as a function of time is given by x=-t^(2)+4t+4 ...

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  17. Find the maximum and minimum values of function 2x^(3)-15x^(2)+36+11

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  18. Find integral of given function x^(2)-2x+1

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  19. Find interals of given functions -3x^(-4)

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  20. Find integrals of given functions {:(" "1),(" "int),(-2):} 5dx

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