Advertisements
Advertisements
Questions
Solar reflectors are important, why?
What is the importance/ function of a solar reflector?
Advertisements
Solution
The solar panel consists of many reflectors that reflect and concentrate solar radiations on absorbers.
RELATED QUESTIONS
What are the advantages and disadvantages of using a solar cooker? Are there places where solar cookers would have limited utility?
Why is the copper tube of a solar water heater painted black from outside?
What type of reflector is used in a box-type solar cooker?
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.
What is a solar cell? Draw the labelled diagram of a solar cell.
State the advantages and disadvantages of using solar cells.
The part of box-type solar cooker which is responsible for producing greenhouse effect is:
(a) plane mirror reflector
(b) black coating inside the box
(c) glass sheet cover
(d) utensils placed in the cooker box
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
In many applications, solar cells are connected to rechargeable batteries. Why is this so?
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
Draw neat and labelled diagram.
One solar panel produces a potential difference of 18 V and current of 3 A. Describe how you can obtain a potential difference of 72 Volts and current of 9 A with a solar array using solar panels. You can use sign of a battery for a solar panel.
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.
Solar photovoltaic cells convert the solar radiation energy directly into ______ energy.
Solar energy is a renewable energy. How?
The installed capacity of the Kamuthi solar power project is ______ MW.
Write a note on Kamuthi Solar Project.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
