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Refraction Of Light Mock Tests

33 questions available

Refraction Of Light Mock Test 1

Questions: 30

Refraction Of Light Mock Test 2

Questions: 3

नमूना प्रश्न

Class 10 Science
A convex lens of focal length 10 cm forms a virtual image of an object placed 5 cm from the lens. The image distance is:
A -10 cm
B +10 cm
C -20 cm
D +20 cm
Class 10 Science
The SI unit of power of a lens is:
A Dioptre
B Metre
C Candela
D Lux
DSC Science
Total internal reflection occurs when light travels from a denser medium to a rarer medium and the angle of incidence is:
A Less than the critical angle
B Equal to the critical angle
C Greater than the critical angle
D Equal to 90 degrees
Class 10 Science
The image formed by a convex lens of a distant tree is:
A Virtual, erect, and diminished
B Real, inverted, and diminished
C Real, inverted, and enlarged
D Virtual, erect, and enlarged
Class 10 Science
A prism separates white light into its constituent colors. This phenomenon occurs because:
A Each color travels at a different speed in the prism material, causing different amounts of bending
B The prism absorbs some colors and reflects others
C Different colors have different masses that affect their path
D The angle of the prism is different for each color
Class 10 Science
A convex lens of focal length f forms a real image that is twice the size of the object. The object distance is:
A 3f
B 2f
C 3f/2
D f/2
Class 10 Science
A ray of light passes from water (refractive index = 1.33) into glass (refractive index = 1.50). What happens to the speed of light?
A It increases
B It decreases
C It remains the same
D It first increases then decreases
Class 10 Science
A converging lens forms a real and inverted image of an object. If the lower half of the lens is covered with opaque paper, the image will:
A Be incomplete — only the upper half will be visible
B Be complete but less bright
C Disappear completely
D Be complete and equally bright

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