Home
Class 12
PHYSICS
A leaf which contains only green pigment...

A leaf which contains only green pigments, is illuminated by a laser light of wavelength `0.6328mum`. It would appear to be

A

(a) brown

B

(b) red

C

(c) black

D

(d) green

Text Solution

Verified by Experts

The correct Answer is:
C
If an object reflects the colour of light incident on it, it will appear with that colour but if object absorbs the colour of light, it will appear to be back. Since the given wavelength does not belong to green, so it will be absorbed by the leaf and hence, it will appear to be black.
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    A2Z|Exercise Assertion Reason|16 Videos

  • WAVE OPTICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • WAVE OPTICS

    A2Z|Exercise AIPMT/NEET Questions|22 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Smallest plant which contain green pigment pigment such as higher green plant is

A green leaf placed in a dark room is illuminated by red light. The leaf will appear to be

A white screen illuminated by green and red light appears to be

When a metallic surface is illuminated by a monochromatic light of lamda the stopping potential for photoelectric current is 4V_(0) when the same surface is illuminated by light of wavelength 3 lamda the stopping potential is V_(0) The threshold wavelength for this surface for photoelectric effect is -

When a piece of metal is illuminated by monochromatic light of wavelength lambda then the stopping potential for photoelectric current is 2.5 V_0 . When the same surface is illuminated by light of wavelength 1.5 lambda , then the stopping potential becomes V_0 . Find the value of threshold wavelength for photoelctric emission.

When a certain metallic surface is illuminated with monochromatic light of wavelength lamda , the stopping potential for photoelectric current is 3V_0 and when the same surface is illuminated with light of wavelength 2lamda , the stopping potential is V_0 . The threshold wavelength of this surface for photoelectrice effect is

When a surface 1cm thick is illuminated with light of wave length lambda the stopping potential is V_(0) , but when the same surface is illuminated by light of wavelength 3 lambda , the stopping potential is V_(0)/6 . The threshold wavelength for matellic surface is:

A sodium metal piece is illuminated with light of wavelength 0.3 mum . The work function of sodium is 2.46 eV. For this situation ,mark out the correct statement (s).

When a surface 1 cm thick is illuminated with light of wavelength lambda , the stopping potential is V_(0) , but when the same surface is illuminated by light of wavelength 3lambda , the stopping potential is (V_(0))/(6) . Find the threshold wavelength for metallic surface.

A narrow slit is illuminated by a parallel beam of monochromatic light of wavelength lambda_(0) equals to 6000 A^(0) and the angular width of the central maxima in the resulting diffraction pattern is measured.When the slit is next illuminated by light of wavelength lambda ,the angular width decreases to half.Calculate the value of the wavelength lambda .

A2Z-WAVE OPTICS-AIIMS Questions
  1. A double slit experiment is performed with light of wavelength 500nm. ...

    Text Solution

    |

  2. An astronaut is looking down on earth's surface from a space shuttle a...

    Text Solution

    |

  3. Sodium lamps are used in foggy conditions because

    Text Solution

    |

  4. An endoscope is employed by a physician to view the internal parts of ...

    Text Solution

    |

  5. When a compact disc is illuminated by a source of white light, coloure...

    Text Solution

    |

  6. In case of linearly polarised light, the magnitude of the electric fie...

    Text Solution

    |

  7. When exposed to sunlight, thin films of oil on water often exhibit bri...

    Text Solution

    |

  8. Which of the following diagrams represent the veriation of electric fi...

    Text Solution

    |

  9. A leaf which contains only green pigments, is illuminated by a laser l...

    Text Solution

    |

  10. The two slits in Young's double slit experiment are illuminated by two...

    Text Solution

    |

  11. White light is used to illuminate the two slits in a Young's double ...

    Text Solution

    |

  12. In the ideal double-slit experiment, when a glass-plate (refractive in...

    Text Solution

    |

  13. In the figure is shown Young's double slit experiment. Q is the positi...

    Text Solution

    |

  14. In Young's double slit experiment the y-coordinates of central maxima ...

    Text Solution

    |

  15. In a single slit diffraction of light of wavelength lambda by a slit o...

    Text Solution

    |

  16. A beam of electron is used YDSE experiment . The slit width is d when ...

    Text Solution

    |

  17. In Young's double slit experiment, the slits are 0.5mm apart and inte...

    Text Solution

    |

  18. In a Young's double slit experiment, the slit separation is 1mm and th...

    Text Solution

    |

  19. In a single slit diffraction method, the distance between slit and scr...

    Text Solution

    |

  20. Light is incident on a polarizer with intensity I0. A second prism cal...

    Text Solution

    |