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Suppose 100 units of solar radiation enters the earth's atmosphere. Based on this information, which of the following statements is absolutely correct? I. Radiation lost to space through scattering will be higher than reflected by the clouds. II. Approximately 20 units of radiation will be received by the earth's surface.
The phases of the moon as we see from the Earth are due to changing relative positions of the sun, the earth and the moon. Which of the following statements is true. A. on a full moon day, the earth comes between the sun and the moon B. on a new moon day, the moon is in between the earth and the sun C. on a full moon day, the moon is in between the earth and the sun D. on a new moon day, the earth is between the sun and the moon? E. on a new moon day, the sun is between the moon and the earth
The acceleration of the moon towards the earth is approximately 0.0027 m/s2. The moon revolves around the earth once approximately every 24 hours. What would be the acceleration due to gravity of the earth of the moon towards the earth if it were to revolve once every 12 hours?
Which of the following statements with regard to the coverage rate of Aadhar cards during 2015 is/are correct? 1) The coverage rate of Aadhar cards in western India is quite high and it is above 90 per cent in Gujarat 2) The coverage rate of Aadhar cards is the highest in southern India and it is almost 100 per cent in the states of Telangana and Andhra Pradesh. 3) The penetration of Aadhar cards has been very low in the northeastern part of India and it is the lowest in Assam and Meghalaya. Select the correct answer using the code given below:
The solar radiation that is felt at the earth’s surface includes (i) Direct radiation that has passed through the atmosphere (ii) Diffuse radiation from the sky (iii) Absorbed radiation from the water Identify the correct statement
Which of the following antennas are used directly as radiators abroad satellites to illuminate comparatively large areas of the Earth and they are widely used as primary feeds for reflector-type antennas both in transmitting and receiving modes ?
Reflector antennas are widely used to modify radiation patterns of radiating elements.
______ antennas have gain less than reflector antennas but have more lenient tolerance on surfaces.
Of the total radiation coming to earth some part is reflected back, some part is absorbed by the atmosphere and the rest reaches to the earth. what is the percentage of reflected, absorbed and the radiation reaches to the earth?
Consider the following statements:
1. The variation in an average annual range of temperature at 15° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere.
2. At latitudes poleward of 35° the incoming radiation exceeds the outgoing radiation in. Northern Hemisphere, whereas in Southern Hemisphere the outgoing radiation exceeds the incoming radiation.
Which of the statements given above is/are correct?