Question

Jan.par

CCT Weekly Practice (Science)

Unit-MIRROR O' MIRROR

Regular mirrors are actually plane mirrors i.e. a mirror without an inward or outward curve. These mirrors can be found almost anywhere - from bathrooms to hallways to building exteriors. Plane mirrors create upright, virtual, laterally inverted images of the same size as the object and at the same distance as the objects. The ratio of the size of the image to the size of the object is termed as the 'magnification'.

Question 1:

A plane mirror produces a magnification of:

i) 2 ii) 3

1

iv) 4

Question 2:

If a person of height 1.45 m stands in front of a plane mirror, he/she would get an image as

high as:

i) 1450 cm

ii) 1450 mm iii) 145 mm

iv) 14.5 cm

Question 3:

A car is parked at the roadside. A truck passes by it, at a speed of 5m/s. What would be the

speed at which the image of the car appears to move away from the truck, as viewed in the

rear-view mirror of the truck?

i) 1 m/s

ii) 2.5 m/s

iii) 5 m/s

iv) 10 m/s







plz answer its urgent..​

Answer 1

Answer:

1) 1

2)1450mm

3) 5 m/s

hope it's useful

Answer 2

the answer is 1 hope it will help you