Thu. Jan 9th, 2025

Insolation and Heat Balance

  1. Which one of the following is not a basic source of energy for the earth and the biospheric ecosystem

    Options:
    1. Solar radiation
    2. Gravity
    3. Endogenetic forces
    4. Exogenetic forces

    Option: D

  2. The part of the solar energy which is known as pool for photosynthesis is

    Options:
    1. 520 x 1022 Joules
    2. 100 x 1022 Joules
    3. 60 x 1022 Joules
    4. 170 x 1019 Joules

    Option: C

  3. The speed of light is

    Options:
    1. 1,76,000 miles a second
    2. 1,86,000 miles a second
    3. 1,96,000 miles a second
    4. 1,56,000 miles a second

    Option: B

  4. Diameter of the Sun is

    Options:
    1. 15,82,000 km
    2. 14,82,000 km
    3. 15,32,000 km
    4. 13,82,000 km

    Option: A

  5. How many times is the Sun’s diameter than that of the planet earth

    Options:
    1. 109 times
    2. 101 times
    3. 113 times
    4. 98 times

    Option: A

  6. The bright outer surface of the sun is called

    Options:
    1. Chromosphere
    2. Photosphere
    3. Corona
    4. Sunspots

    Option: B

  7. Numerous small bright areas in the photosphere are called

    Options:
    1. Photons
    2. Sunspots
    3. Granules
    4. None of the above

    Option: C

  8. Within photosphere cool and dark spots are known as

    Options:
    1. Photons
    2. Sunspots
    3. Granules
    4. Faculae

    Option: B

  9. Within photosphere hotspots are known as

    Options:
    1. Photons
    2. Sunspots
    3. Granules
    4. None of the above

    Option: B

  10. A thin layer of burning gases around photosphere is called

    Options:
    1. Sunspots
    2. Photosphere
    3. Corona
    4. Chromosphere

    Option: D

  11. _____________ represents outermost zone of the sun’s atmosphere.

    Options:
    1. Sunspots
    2. Photosphere
    3. Corona
    4. Chromosphere

    Option: C

  12. The amount of solar constant is

    Options:
    1. 2-gram calories per square centimeter per minute
    2. 3-gram calories per square centimeter per minute
    3. 4-gram calories per square centimeter per minute
    4. 5-gram calories per square centimeter per minute

    Option: D

  13. Which of followings laws is/are related to radiation from the black body:

    1. Wien’s displacement law
    2. Stefan-Boltzman law
    3. Kirchoff’s law
    4. Plank’s law
    Options:
    1. 1 and 3
    2. Only 1
    3. 1, 2 and 4
    4. All of the above

    Option: D

  14. The surface temperature of the sun is

    Options:
    1. 6000°K
    2. 6000°C
    3. 8000°K
    4. 8000°C

    Option: A

  15. The solar energy received at the earth’s surface is called insolation

    Options:
    1. Insolation
    2. Solar radiation
    3. Both a and b
    4. Only a

    Option: C

  16. Time taken by the sun rays to reach the earth’s surface is

    Options:
    1. 8 minutes 20 seconds
    2. 8 minutes 30 seconds
    3. 7 minutes 20 seconds
    4. 8 minutes 40 seconds

    Option: A

  17. Distance between the sun and the earth is

    Options:
    1. 190 million km
    2. 160 million km
    3. 175 million km
    4. 150 million km

    Option: D

  18. Match following lists and give the correct answer from given the codes:

    List-I(Waves) List -II(Wavelength in Angstrom)
    (a) Gama Rays i.  0.03 – 0.6
    (b) Hard X-Rays ii.0.6 – 100
    (c) Soft X-Rays iii. 100 – 4000
    (d)  Ultra-Violet Rays iv. less than 0.03
    Options:
    1. (iii) (ii) (i) (iv)
    2. (iii) (iv) (ii) (i)
    3. (iv) (i) (ii) (iii)
    4. (ii) (iii) (iv) (i)

    Option: C

  19. How much percent of the total energy of the solar spectrum of all the electromagnetic radiation waves is contributed by the spectrum of visible light

    Options:
    1. 41 percent
    2. 51 percent
    3. 35 percent
    4. 67 percent

    Option: A

  20. Which of following pair/pairs of rays included in the spectrum of visible light or rays:

    1. Violet and blue
    2. Green and yellow
    3. Orange and red
    4. X and red
    Options:
    1. 1 and 2
    2. Only 1
    3. 1, 2 and 3
    4. All of the above

    Option: A