Home
Class 10
PHYSICS
A student constructed a model of box-typ...

A student constructed a model of box-type solar cooker. He used a transparent plastic sheet to cover the open face of the box. He found that this cooker does not function well. What modification should he make to enhance its efficiency ? Give reason.

Text Solution

Verified by Experts

Instead of using a plastic sheet, the student should use a transparent glass sheet to cover the open face of the box. This is because a glass sheet can trap the heat rays of the sun very effectively by producing greenhouse effect. A transparent plastic sheet cannot do that.
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Exercise|72 Videos

  • SOURCES OF ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise HOTS|19 Videos

  • REFRACTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise VERY SHORT ANSWER TYPE QUESTIONS|1 Videos

  • TEST PAPER 1

    LAKHMIR SINGH & MANJIT KAUR|Exercise Section B|4 Videos

Similar Questions

Explore conceptually related problems

A student constructed a box type solar cooker. He found that it did not work efficiently. What could this be due to ? Give any four possible mistakes in the construction and operation of the cooker. What maximum temperature can ordinarly be reached inside a solar cooker ?

Two students made box-type solar cookers separately. They both painted the insulated box with black colour from inside, the cooking pots were painted black from outside, and a plane mirror reflector was also attached. One of the students covered the solar cooker box with a transparent glass sheet but the other student covered the solar cooker box with a transparent plastic sheet. Which of the two solar cookers will be more efficient and why ?

In order to make an efficient solar cooker, the cover of cooker box should be made of :

(a) Explain why, a solar cooker box is (i) painted black from inside, and (ii) covered with a glass sheet. (b) Give two reasons why biogas is a good domestic fuel.

A student has set up a solar cooker in a box using a black painted aluminium sheet, a black cooking vessel, some glass wool , a transparent glass sheet and a mirror plate. What is the role of black paint, transparent glass sheet and a mirror used in the solar cooker ?