Q 1 – In the following, which mirror makes a diminished and virtual image of an object?
(a) Plane
(b) Concave
(c) Convex
(d) All the above
(c) Convex
Q 2 – Assertion: Cannot see the distant object clearly.
Reason: The far point of an eye suffering from myopia is less than infinity.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(b) Both A and R are true but R is not the correct explanation of A.
Q 3 – The diagrams showing the correct path of the ray after passing through the
(a) II and III only
(b) I and II only
(c) I, II and III
(d) I, II and IV
(c) I, II and III
Q 4 – If an image is formed erect on putting object near the mirror but the image is formed inverted on putting object far from the mirror, the
the mirror will be:
(a) Plane
(b) Concave
(c) Convex
(d) Plano convex
(b) Concave
Q 5 – Which colour has maximum optical wavelength?
(a) Yellow
(b) Green
(c) Red
(d) Violet
(c) Red
Q 6 – A light ray enters from medium A to medium B as shown in ¦gure. The refractive index of medium B relative to A will be
(a) greater than unity
(b) less than unity
(c) equal to unity
(d) zero
(a) greater than unity
Q 7 – What will be the position and nature of the image of an object formed by a convex mirror placed between infinity and pole (P) of the
mirror?
(a) In between P and F behind mirror virtual and erect
(b) In between Pand F behind mirror virtual and inverted
(c) In front of the mirror, real and erect.
(d) Infront of mirror virtual and erect (Here F is the focus)
(a) In between P and F behind mirror virtual and erect
Q 8 – Beams of light are incident through holes A and B and emerge out of the box through the holes C and D respectively as shown in the Figure. Which of the following could be inside the box?
(a) A rectangular glass slab
(b) A convex lens
(c) A concave lens
(d) A prism
(a) A rectangular glass slab
(d) In between the pole P and the focus F of the mirror
Q 9 – When an object should be placed in front of the concave mirror so that its image be erect and larger in size?
(a) At the centre of curvature C of the mirror
(b) At the focus point F of the mirror
(c) In Between the centre of curvature C and the focus F of the mirror
(d) In between the pole P and the focus F of the mirror
(d) In between the pole P and the focus F of the mirror
Q 10 – A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as show in the Figure. Which of the following could be inside the box?
(a) Concave lens
(b) Rectangular glass slab
(c) Prism
(d) Convex lens
(d) Convex lens
Q 11 – Focal length of a convex mirror is 12 cm. The radius of convex surface will be:
(a) 6 cm
(b) 12 cm
(c) 18 cm
(d) 24 cm
(d) 24 cm
Q 12 – The path of a ray of light coming from air passing through a rectangular glass slab traced by four students are shown as A, B, C and D in Figure. Which one of them is correct?
(a) A
(b) B
(c) C
(d) D
(b) B
Q 13 – The image of an object is formed virtual and enlarged by:
(a) Convex mirror
(b) Concave mirror
(c) Plane mirror
(d) Concave lens
(b) Concave mirror
Q 14 – The image formed by a convex lens can be
(a) virtual and magnified
(b) virtual and diminished
(c) virtual and of the same size
(d) the virtual image is not formed
(a) virtual and magnified
Q 15 – The conjugate focus is possible only in:
(a) Convex mirror
(b) Concave mirror
(c) Plane mirror
(d) Simple glass
(b) Concave mirror
Q 16 – Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in Figure?
(a) Fig. A
(b) Fig. B
(c) Fig. C
(d) Fig. D
(d) Fig. D
Q 17 – If the angle of incidence is 42° and angle of refraction is 30°, then refracted ray is deviated by an angle:
(a) 12°
(b) 72°
(c) 1.4°
(d) sin 42°/sin 30°
(a) 12°
Q 18 – The image of an object, which puts in front of a convex mirror, is formed:
(a) At the position of object
(b) At a double distance of the position of the object
(c) At half distance of the position of the object
(d) Behind the mirror
(d) Behind the mirror
Q 19 – A ray of light is travelling from a rarer medium to a denser medium. While entering the denser medium at the point of incidence, it
(a) goes straight into the second medium
(b) bends towards the normal
(c) bends away from the normal
(d) does not enter at all
(b) bends towards the normal
Q 20 – When white light passes through a glass prism which ray of colour deviated maximum:
(a) Yellow
(b) Violet
(c) Red
(d) Green
(b) Violet
Q 21 – The focal length of a concave mirror is 10 cm. The radius of curvature of the mirror will be:
(a) 10 cm
(b) 20 cm
(c) 30 cm
(d) 40 cm
(b) 20 cm
Q 22 – If an incident ray passes through the focus, the reflected ray will
(a) pass through the pole
(b) be parallel to the principal axis
(c) retrace its path
(d) pass through the centre of curvature
(b) be parallel to the principal axis
Q 23 – A divergent lens will produce
(a) always real image
(b) always virtual image
(c) both real and virtual image
(d) none of these
(b) always virtual image
Q 24 – The focal length of the plane mirror is:
(a) Zero
(b) Infinite
(c) 25 cm
(d) 25 cm
(b) Infinite
Q 25 – Which of the following ray diagrams is correct for the ray of light incident on a lens shown in the figure?\
(a) Fig. A
(b) Fig. B
(c) Fig. C
(d) Fig. D
(a) Fig. A
Q 26 – A light ray is an incident normally on the boundary surface of two media, then the angle of refraction will be:
(a) 0°
(b) 45°
(c) 60°
(d) 80°
(a) 0°
Q 27 – Assertion: The pupil is black in colour.
Reason: The pupil is black in colour as no light is reflected in it.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false
(a) Both A and R are true and R is the correct explanation of A.
Q 28 – The image formed by a mirror is always straight whatever will be the distance, then the mirror is:
(a) Only plane
(b) Only concave
(c) Only Convex
(d) Either plane or convex
(a) the Only plane
Q 29 – A student used a device (X) to obtain/focus the image of a well-illuminated distant building on a screen (S) as shown alongside in the diagram. Select the correct statement about the device (X).
(a) This device is a concave lens of focal length 8 cm.
(b) This device is a convex mirror of focal length 8 cm.
(c) This device is a convex lens of focal length 4 cm.
(d) This device is a convex lens of focal length 8 cm.
(d) This device is a convex lens of focal length 8 cm.
Q 30 – Assertion: The rainbow is a man-made spectrum of sunlight in the sky.
Reason: The rainbow is formed in the sky when the sun is shining and it is raining at the same time.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
(a) Both A and R are true and R is the correct explanation of A.
Q 31 – The image formed by a mirror is always straight whatever will be the distance, then mirror is:
(a) Only plane
(b) Only concave
(c) Only Convex
(d) Either plane or convex
(a) Only plane
Q 32 – A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
(a) MW
(b) MS
(c) SW
(d) MW- WS
(b) MS
Q 33 – If the refractive index of glass with respect to air is 1.5, then the refractive index of air with respect to glass will be:
(a) 3.00
(b) 1.50
(c) 0.75
(d) 0.67
(d) 0.67
Q 34 –
| Column I | Column II |
| (a) Mirror having magnification always equal to one (m = 1) | (i) Concave Mirror |
| (b) Mirror used to concentrate sunlight in reflecting solar cooker | (ii) refraction |
| (c) Image can be obtained on the screen | (iii) plane mirror |
| (d) Bottom of a tank containing water appears to be raised due to |
(iv) convex lens |
| (e) The lens having power – 2D | (v) real image |
| (f) The lens which is thicker at the middle as compared to the edges | (vi) concave lens |
| (g) Mirror used as a rear-view mirror in vehicles | (vii) convex mirror |
| Column I | Column II |
| (a) Mirror having magnification always equal to one (m = 1) | (iii) plane mirror |
| (b) Mirror used to concentrate sunlight in reflecting solar cooker | (i) concave mirror |
| (c) Image can be obtained on the screen | (v) real image |
| (d) Bottom of a tank containing water appears to be raised due to | (ii) refraction |
| (e) The lens having power – 2D | (vi) concave lens |
| (f) The lens which is thicker at the middle as compared to the edges | (iv) convex lens |
| (g) Mirror used as a rear-view mirror in vehicles | (vii) convex mirror |
Q 35 – Out of yellow, violet, blue and red colours which will have a maximum wavelength?
(a) Red
(b) Blue
(c) Violet
(d) Yellow.
(a) Red
Q 36 – When light falls on a smooth polished surface, most of it
(a) is reflected in the same direction
(b) is reflected in different directions
(c) is scattered
(d) is refracted into the second medium
(a) is reflected in the same direction
Q 37 When white light passes through a prism, the colour deviated to the base of a prism is:
(a) Red
(b) Yellow
(c) Violet
(d) Green
(c) Violet
Q 38 – Concave lens forms image of the object as:
(a) real, erect and enlarged
(b) virtual, erect and diminished
(c) real, inverted and diminished
(d) virtual, inverted and enlarged
(b) virtual, erect, and diminished
Q 39 – Refractive index of glass is maximum for:
(a) Red
(b) Violet
(c) Green
(d) Yellow
(b) Violet
Q 40 A spherical mirror and thin spherical lens have each of focal length of -15 cm. the mirror and lens are likely to be
(a) Both concave
(b) Both convex
(c) The mirror is concave and the lens is convex
(d) The mirror is convex and the lens is concave
(a) Both concave
Q 41 – The refractive index of a transparent medium is greater than one because
(a) Speed of light in vacuum < speed of light in a transparent medium
(b) Speed of light in vacuum > speed of light in a transparent medium
(c) Speed light in vacuum = speed of light in a transparent medium
(d) Frequency of lightwave changes when it moves from rarer to denser medium
(b) Concave lens
Q 42 – The refractive index of a transparent medium is greater than one because
(a) Speed of light in vacuum < speed of light in a transparent medium
(b) Speed of light in vacuum > speed of light in a transparent medium
(c) Speed light in vacuum = speed of light in a transparent medium
(d) Frequency of lightwave changes when it moves from rarer to denser medium
(b) Speed of light in vacuum > speed of light in a transparent medium
Q 43 – The order of colours arranged in the spectrum of white light is expressed as:
(a) VIBGYOR
(b) VIBYGOR
(c) VIBGOYR
(d) VIGBYOR
(a) VIBGYOR
Q 44 – Focal length of length, having power – 5D, will be:
(a) 0.2 m
(b) 0.5 m
(c) 0.2 m
(d) -0.5 m
(c) 0.2 m
Q 45 – Out of seven colours of white light, which colour has maximum wavelength?
(a) Red
(d) Green
(c) violet
(d) Green
(a) Red
Q 46 – A large number of thin stripes of black paint are made on the surface of a convex lens of focal length 20 cm to catch the image
of a white horse. The image will be
(a) a zebra of black stripes
(b) a horse of black stripes
(c) a horse of less brightness
(d) a zebra of less brightness
(c) a horse of less brightness
Q 47 – When white light passes through a prism, the minimum deviation is:
(a) Violet
(b) Red
(c) Green
(d) Yellow
(b) Red
Q 48 – The power of a convex lens is 1 D. Its focal length will be:
(a) 50 cm
(b) 100 cm
(c) 25 cm
(d) 20 cm
(b) 100 cm
Q 49 – Which one of the following materials cannot be used to make a lens?
(a) Water
(b) Glass
(c) Plastic
(d) Clay
(d) Clay
Q 50 – Out of seven colours of white light, which colour has maximum frequency:
(a) Red
(b) Violet
(c) Green
(d) Yellow
(b) Violet