Home
Class 11
PHYSICS
A circular disc of which 2//3 part is co...

A circular disc of which `2//3` part is coated with yellow and `1//3` part is with blue . It is rotated about its central axis with high velocity. Then it will be seen as

A

green

B

blue

C

white

D

yellow

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|88 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

  • RAY OPTICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos

  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

Similar Questions

Explore conceptually related problems

When a circular disc of radius 0.5 m is rotating about its own axis then the direction of its angular momentum is

A uniform disc and a hollow right circular cone have the same formula for their M.I, when rotating about their central axis. Why is it so?

A disc of mass 16 kg and radius 25 cm is rotated about its axis. What torque will increase its angular velocity from 0 to 8pi rad/s in 8 s ?

A circular disc of radius R and thickness R/6 has moment of inertia I about an axis passing through. Its is melted and recast into a solid sphere. What is the moment of inertia of the solid sphere about its diameter as the axis of rotation?

A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2 rad s^(-1) . Its net acceleration in ms^(-2) at the end of 2 s is approximately

A circular disc of radius 20 cm is rotating about its own axis at an angular velocity omega . The angular velocity of a particle 'A' which is at a distance 10 cm from the axis of rotation is

A circular disc of radius R is rotating about its axis through O with uniform angular velocity omegarad//s as shown. The magnitude of velocity of A relative to B is

A disc of radius 10 cm can rotate about an axis passing through its centre and perpendicular to its plane. A force of 10 N is applied along the tangent in the plane of the disc. If the moment of inertia of the disc about its centre is 5 kg m2, then the increase in the angular velocity of the disc in 10 s will be

In a certain unit , the radius of gyration of a uniform disc about its central and transverse axis is sqrt (2.5) . Its radius of gyration about a tangent in its plane (in the same unit ) must be

TARGET PUBLICATION-REFRACTION OF LIGHT -CRITICAL THINKING
  1. A ray of light passing through a prism having refractive index sqrt(2)...

    Text Solution

    |

  2. The distance travelled by a ray of light in two media, in the same tim...

    Text Solution

    |

  3. A small bulb is placed at the bottom of a tank containing water to a d...

    Text Solution

    |

  4. A tank is filled with water to height of 12.5 cm. The apparent depth o...

    Text Solution

    |

  5. A vessel of depth 2d cm is half filled with liquid of refractive inde...

    Text Solution

    |

  6. A layer of oil 3 cm thick is flowing on a layer of coloured wtater 5 c...

    Text Solution

    |

  7. In the given figure, the principal section of a glass prism is an isos...

    Text Solution

    |

  8. The deviation produced by a thin glass prism placed in air, when immer...

    Text Solution

    |

  9. A fish at a depth of sqrt(7) cm bleow the surface of water sees the ou...

    Text Solution

    |

  10. A ray of light is incident normally normallyh on one of the faces of a...

    Text Solution

    |

  11. A light ray is incident normally on the face AB of a right-angled pris...

    Text Solution

    |

  12. On heating a liquid, the refractive index generally

    Text Solution

    |

  13. If hat(i) denotes a unit vector along incident light ray, hat( r) a un...

    Text Solution

    |

  14. The fine powder of a coloured glass is seen as

    Text Solution

    |

  15. A circular disc of which 2//3 part is coated with yellow and 1//3 part...

    Text Solution

    |

  16. Light enters at an angle of incidence in a transparent rod of refracti...

    Text Solution

    |

  17. A glass prism (mu = 1.5) is dipped in water (mu = 4//3) as shown in fi...

    Text Solution

    |

  18. An isosceles prism of angle 120^(@) has a refractive index of 1.44. Tw...

    Text Solution

    |

  19. When light is incident on a medium at angle i and refracted into a sec...

    Text Solution

    |

  20. Immixable transparent liquids A,B,C,D and E are placed in a rectangula...

    Text Solution

    |