Home
Class 11
PHYSICS
Two rain drops reach the earth with diff...

Two rain drops reach the earth with different terminal velocities having ratio `9:4` . Then , the ratio of their volumes is

A

`3/2`

B

`9/4`

C

`(27)/(8)`

D

`8/(27)`

Text Solution

Verified by Experts

The correct Answer is:
B
Terminal velocity `vpropr^2`
`:." "(v_1)/(v_2)=(r_1^2)/(r_2^2)=9/4" or "(r_1)/(r_2)=3/2`
`:." "("Volume"(V_1))/("Volume"(V_2))=((4pi)/3)/((4pi)/3)((r_1^3)/(r_2^3))=((3)/(2))^3=(27)/8`
Promotional Banner

Topper's Solved these Questions

  • FRICTIONAL IN SOLIDS AND LIQUIDS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • FORCE, WORK AND TORQUE

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

Similar Questions

Explore conceptually related problems

Two rain drops reach the earth with different terminal velocities having ratio 94 then te ratio fo their volume is

Two rain drop reach the earth with their with the terminal velocity in the ratio 4 :9 . The ratio of their radii is

If the surface areas of two spheres are in the ratio 4:9 , then the ratio of their volumes is :

Two oil drops in Millikan's experiment are falling with terminal velocities in the ratio 1:4. The ratio of their de-Broglie wavelengths is "2^(n) Find n value is

If the base radii of two cylinders are in the ratio 3:4 and their heights are in the ratio 4: 9. then the ratio of their respective volumes is :

If the surface areas of two spheres are in the ratio 9:16, the ratio of their volumes is

The areas of two circles are in the ratio 9:4 .The ratio of their circumferences is

The surface areas of two spheres are in the ratio 1:4. What is the ratio of their volumes ?