Lakhmir Singh and Manjit Kaur Solutions for Chapter: Light, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Light, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)
Attempt the free practice questions on Chapter 16: Light, Exercise 5: Questions Based on High Order Thinking Skills (HOTS) with hints and solutions to strengthen your understanding. Lakhmir Singh's SCIENCE FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Light, Exercise 5: Questions Based on High Order Thinking Skills (HOTS) with Hints & Solutions
A man stands in front of a large plane mirror. How far must he walk before he is away from his image?
A ray of light strikes a plane mirror at an angle of incidence of , is reflected from this plane mirror and then strikes a second plane mirror placed at right angles to the first mirror. What is the angle of reflection for the mirror ?
The eye of a person exhibits a phenomenon X due to which it can see the image of an object for a short duration of Y even after the object has disappeared from his view. It is due to the phenomenon X that we are able to see moving Z on a television screen. What are X, Y and Z?
Man A has a defect of vision due to which he cannot see the nearby objects clearly (though he can see the distant objects clearly). On the other hand, man B has a defect of vision due to which he cannot see the distant objects clearly (though he can see the nearby objects clearly). The defect in man A can be corrected by using spectacles containing lenses C, whereas the defect in man B can be corrected by using spectacles containing lenses D.
Name the defect of vision in man A, and B.
Man A has a defect of vision due to which he cannot see the nearby objects clearly (though he can see the distant objects clearly). On the other hand, man B has a defect of vision due to which he cannot see the distant objects clearly (though he can see the nearby objects clearly). The defect in man A can be corrected by using spectacles containing lenses C, whereas the defect in man B can be corrected by using spectacles containing lenses D.
What type of lenses are C, and D?
A student makes a device P by using three long and narrow strips of plane mirrors inclined at to one another, which enables him to see beautiful patterns made by pieces of coloured glass bangles. On the other hand, another student makes a device Q by using two plane mirrors arranged parallel to each other which helps him to see a football match clearly even when some very tall persons are sitting in front of him in the ground. What are P and Q?
