WorksheetsLight class 7
Total questions: 15
Worksheet time: 5mins
uses of Concave mirror (click on one or more options )
reflecting telescopes
looking glass
torches
solar cookers
what image can be projected on a screen
virtual image
erect image
real image
laterally inverted image
what type of reflection is this ?
diffused reflection
regular reflection
both
concave mirrors are called ?
diverging mirrors
converging mirrors
plane mirrors
How many types of spherical mirrors
2
5
1
4
6
A object is kept before a concave mirror. The location of the object is between centre of curvature (c) and principal focus(f). What is the location of the image ?
at the centre of curvature
between the centre of curvature (c) and principal focus(f)
beyond the centre of curvature (c)
at infinity
what is refraction ?
bouncing of light
bending of light
moving of light in a straight line
dispersion of light
how many laws of reflections are there ?
0
2
1
4
which of the following are luminous objects?(choose one or more options)
moon
sun
torch
stars
speed of light is
3,00,00,000 km/s
3,00,000 km/s
3,000 km/s
3,00,00,00,000 km/s
A object is placed 5m away from the mirror. Then how far will be the image from the object ?
7cm
12cm
10cm
5cm
Concave Lens is also called as ?
converging lens
translucent lens
reacting lens
diverging lens
A girl is standing before a mirror. The distance between girl and the image is 10 cm. She walks 2cm towards the mirror. Find the distance between her image and the mirror.
5 cm
6cm
3cm
4cm
a image formed by a concave lens can be (choose one or more options)
real
diminished
inverted
enlarged
virtual
which of the following are the properties of the image formed ?
enlarged
smaller than the image
virtual
real
inverted
