Class 05 EVS Light And Sound CBSE Questions & Answers

Class 5 · EVS Light And Sound

This is Science and Social Science (EVS) class 05 EVS Light and Sound CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Sound helps us to
  • A
    Group each other
  • B
    Communicate with one another
    Correct
  • C
    View each other
  • D
    Identify one another
2
Sound is produced by
  • A
    Vibration
    Correct
  • B
    Cooling
  • C
    Heating
  • D
    Moving
3
When a tightly stretched band is plucked it
  • A
    Only oscillate to and fro
  • B
    Produce sound but do not vibrate
  • C
    Vibrate and produce sound
    Correct
  • D
    Vibrate but do not produce sound
4
White light consist of
  • A
    9 colours
  • B
    3 colours
  • C
    7 colours
    Correct
  • D
    5 colours
5
One of the most common well-known periodic motion is that of
  • A
    Quartz clock
  • B
    Digital clock
  • C
    Simple pendulum
    Correct
  • D
    Sundial
6
The mirror used as rear view mirror in vehicle is
  • A
    Any one of above
  • B
    Plane mirror
  • C
    Concave mirror
  • D
    Convex mirror
    Correct
7
Speed of sound increase with
  • A
    Decrease in humidity
  • B
    All of the above
  • C
    Increase in temperature
    Correct
  • D
    Decrease in temperature
8
In which type of mirror image is always laterally inverted?
  • A
    Biconcave mirror
  • B
    Concave mirror
  • C
    Plane mirror
    Correct
  • D
    Convex mirror
9
From a source, light travels as rays which are
  • A
    Parallel
    Correct
  • B
    Diffused
  • C
    Divergent
  • D
    Convergent
10
Dentist use concave mirror because as it forms
  • A
    Erect image
  • B
    Inverted image
  • C
    Magnified image
    Correct
  • D
    Diminished image
11
Which type of mirror is used as concentrator in solar furnace?
  • A
    Concave mirror
    Correct
  • B
    Bifocal mirror
  • C
    Plane mirror
  • D
    Convex mirror
12
Speed of light
  • A
    Changes with medium
    Correct
  • B
    Remain same in all medium
  • C
    Decrease in rarer medium
  • D
    Increase in denser medium
13
A stethoscope works on the principle of
  • A
    Echo
  • B
    Linear propagation
  • C
    Multiple reflection
    Correct
  • D
    Reverberation
14
In plane mirror, image formed is
  • A
    Any where behind the mirror
  • B
    At same distance from the mirror
    Correct
  • C
    Double the distance of mirror
  • D
    Half the distance of mirror
15
Vibrating part of musical instrument shown below is
Question 15 figure 1
  • A
    Air-column
    Correct
  • B
    Rubber band
  • C
    String
  • D
    Stretched membrane