Advertisements
Advertisements
प्रश्न
The potential difference available from a solar cell depends on its area.
पर्याय
True
False
Advertisements
उत्तर
False
APPEARS IN
संबंधित प्रश्न
What kind of mirror – concave, convex or plain – would be best suited for use in a solar cooker? Why?
Name the device which converts sunlight into electricity.
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
Explain why, a plane mirror reflector is used in a box-type solar cooker.
Write the uses of solar cells.
Why is the solar cooker box covered with a glass sheet?
The value of solar constant is:
(a) 1.4 kWh
(b) 1.4 kW/m
(c) 1.4 kW/m2
(d) 1.4 kW/m3
The radiations present in sunlight which make a solar cooker work are:
(a) visible light rays
(b) ultraviolet rays
(c) comic rays
(d) infrared rays
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
In many applications, solar cells are connected to rechargeable batteries. Why is this so?
Name two devices which can be utilised for the cooking of food so as to save fuel.
Write a short note on electrical energy generation and environment.
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
Assertion (A): A solar cooker cooks the meal due to the greenhouse effect.
Reason (R): The plane mirror is responsible for producing the greenhouse effect.
Complete the following flow chart.
Choose the correct statement.
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
