WorksheetsLight, Shadows and Reflections
Total questions: 12
Worksheet time: 25mins
Non-luminous objects are objects which:
A) Produce their own light
B)Do not produce its own light
C) Can be seen only when light falls o them
D) Both (B) and (C)
A transparent object which is mostly used in windows of houses.
A) polythene
B) Wood
C) Glass
D) Ground glass
Which of the following characteristics are observed in an image formed by a pinhole camera?
A) Virtual image
B) Real image
C) Erect Image
D) Image of different colour
Which of the flowing is a transparent object?
A) Cardboard
B)Tracing paper
C) Air
D) Clear glass
Light travels in a:
A) Circular path
B) Rectilinear path
C) Rotational path
D) Triangular path
Which of the following is not a necessary condition for the formation of a
shadow?
A) An opaque object
B) A screen
C) A transparent object
D) A source of light
Images of actors on screen in cinema halls are;
A) Virtual images
B) Real images
C) Imaginary images
D) All the above
We can see any object if:
A) It is a luminous object.
B) It reflects the light falling on it.
C) It is placed in a dark room.
D) Both [a] and [b]
Opaque objects:
A) Allow light to pass through them.
B) Allow light to pass through them partially.
C) Allow light not to pass through them.
D) Both [b] and [c]
A very narrow beam of light is called:
A) Ray
B) Beam
C) Candela
D) All the above
Which of the following images are real?
A) Image formed on the screen of cinema hall.
B) Image formed by a pinhole camera.
C) Image formed by a concave mirror when object is placed at infinity.
D) All the above
Narrow beam of light before reflection in known as:
A) Reflected ray
B) Incident ray
C) Normal ray
D) Reflection
