Home
Class 12
BIOLOGY
Assertion :- Bird flying high up in air ...

Assertion :- Bird flying high up in air does not cast shadow on the earth ground.
Reason :- The size of bird is smaller than sun and sun is an extended source of light.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ANATOMY OF FLOWERING PLANTS

    ALLEN|Exercise S|33 Videos

Similar Questions

Explore conceptually related problems

Assertion : A bird perches on a high power line and nothing happens to the bird. Reason : The level of bird is very high from the ground.

A pole 6 m high casts a shadow 2 sqrt 3 m long on the ground, then find the angle of elevation of the sun.

If a tower 30 m high, casts a shadow 10sqrt3 m long on the ground, then what is the angle of elevation of the sun ?

Assertion : The sun is the ultimate source of all types of energies and sustains life on earth. Reason : The solar energy gets converted into all types of energies present on the earth.

Assertion : Light year and year, both measure time. Reason : Because light year is the time light takes to reach the earth from the sun.

Assertion : Light year and year, both measure time. Reason : Because light year is the time light takes to reach the earth from the sun.

Assertion (A): At pole value of acceleration due to gravity (g) is greater than that of equator. Reason (R) : Earth rotates on its axis in addition to revolving round the sun.

ALLEN-AIIMS 2019-BIOLOGY
  1. Assertion :- When monochromatic light is incident on a surface separat...

    Text Solution

    |

  2. Assertion :- Lens formula can be applied only for thin lenses Reaso...

    Text Solution

    |

  3. Assertion :- Bird flying high up in air does not cast shadow on the ea...

    Text Solution

    |

  4. Assertion :- Upon the displacement of charges within a closed surface ...

    Text Solution

    |

  5. If net charge enclosed by a Gaussian surface is zero, then Asserti...

    Text Solution

    |

  6. Assertion :- When a point charge q is placed inside the cavity of a co...

    Text Solution

    |

  7. If the electric potential of the inner shell is 10 V and that of the o...

    Text Solution

    |

  8. Assertion :- Solubility of alkali metal hydroxide increases on moving ...

    Text Solution

    |

  9. Assertion :- Bond energy of F2 is less than Cl2. Reason :- Bond len...

    Text Solution

    |

  10. Assertion :- XeF4 exists while XeH4 does not exist. Reason :- In Xe...

    Text Solution

    |

  11. Assertion :- All diamagnetic species are colourless Reason :- All p...

    Text Solution

    |

  12. Assertion :- Every collision among reactant molecules is not responsib...

    Text Solution

    |

  13. Assertion :- Most dangerous sexually transmitted disease is AIDS. R...

    Text Solution

    |

  14. Assertion :- Advance stage of cancer shows contact inhibition. Reas...

    Text Solution

    |

  15. Assertion :- Innate immunity is of great importance in early life year...

    Text Solution

    |

  16. Assertion :- Most dangerous form of malaria is falciparum malaria. ...

    Text Solution

    |

  17. Assertion :- Heroin is a CNS deprassant. Reason :- Heroin causes de...

    Text Solution

    |

  18. Assertion :- Ring worm disease caused due to Round worm. Reason :-...

    Text Solution

    |

  19. Assertion :- Sterilization is a terminal method used only for males. ...

    Text Solution

    |

  20. Assertion :- Diaphragm, cervical cap and vaults are barrier made up of...

    Text Solution

    |