Solar Cooker

Q.

Draw a well-labeled diagram of a solar cooker and write its functions.

Q.

Explain the working of solar cooker.

Q.

With the neat diagram, explain box type solar cooker.

Q.

Match the following:

$\begin{array}{cc}\text{I. Coating solar cooker}\text{with black paint}& \text{a. Causes greenhouse effect}\text{inside the cooker}\\ \text{II. Concave mirror}& \text{b. Absorbs more heat}\\ \text{III. Glass sheet covering}& \text{c. Converge heat at one point}\end{array}$

1. I-a, II-b, III-c

2. I-c, II-b, III-a

3. I-b, II-c, III-a

4. I-b, II-a, III-c

Q.

a) Why are solar heating devices painted black?

b) Name two such devices and state two limitations of these.

Q.

Match the following:
$\begin{array}{cc}\text{I.Coating solar cooker with black paint}& \text{a. Trap sunlight}\\ \text{II.Concave mirror}& \text{b. Absorbs more heat}\\ \text{III.Glass sheet covering}& \text{c. Converge heat at one point}\end{array}$

1. I-c, II-b, III-a

2. I-b, II-a, III-c

3. I-a, II-b, III-c

4. I-b, II-c, III-a