Advertisements
Advertisements
प्रश्न
What is solar constant? What is the value of solar constant?
उत्तर
The amount of solar energy received per second on one square metre area of the near-earth space at an average distance between the sun and the earth is called the solar constant. Its value is 1.4 kJ/s/m2 or 1.4 kW/m2.
APPEARS IN
संबंधित प्रश्न
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
A solar cooker may not cook food if
(a) the solar cooker is not placed in the shade
(b) the glass sheet cover of solar cooker is not closed
(c) a convex mirror reflector is not used
In a solar water heater, why is the storage tank placed at a higher lever than the solar panel containing coils?
Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place.
Which of the following is used in solar cooker to harvest the solar energy?
a) Solar panels
b) Silicon cell
c) Mirrors
d) Glass lid
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
A silicon solar cell of dimension 1 sq.cm. generates a current of about ___________.
Complete the following flow chart.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
