BITSAT Question Bank
1110 BITSAT-pattern MCQs across Physics, Chemistry, Mathematics, English Proficiency and Logical Reasoning. Search by keyword or filter by subject, chapter, topic and year, then reveal the answer and explanation.
1110 questions found. Year tags appear only on verified past-paper questions; untagged questions are Prepkunj practice questions on the BITSAT pattern, not official BITSAT papers.
- PhysicsRay Optics and Optical InstrumentsSpherical MirrorsPracticeeasy
The focal length of a spherical mirror of radius of curvature R is:
- A. R
- B. R/2
- C. 2R
- D. R/4
- PhysicsRay Optics and Optical InstrumentsPlane MirrorsPracticeeasy
The image formed by a plane mirror is always:
- A. Real and inverted
- B. Virtual and erect
- C. Real and erect
- D. Virtual and inverted
- PhysicsRay Optics and Optical InstrumentsRefractionPracticeeasy
Refractive index of a medium in which light travels at 2 × 10⁸ m/s is:
- A. 1.5
- B. 2.0
- C. 1.33
- D. 1.0
- PhysicsRay Optics and Optical InstrumentsTIRPracticeeasy
Total internal reflection can occur when light travels from:
- A. Rarer to denser medium
- B. Denser to rarer medium
- C. Any medium to vacuum only
- D. Air to glass
- PhysicsRay Optics and Optical InstrumentsLens PowerPracticeeasy
Power of a lens of focal length 25 cm is:
- A. +2 D
- B. +4 D
- C. +0.25 D
- D. +25 D
- PhysicsRay Optics and Optical InstrumentsRefractionPracticeeasy
Which quantity does NOT change when light passes from air into glass?
- A. Speed
- B. Wavelength
- C. Frequency
- D. Direction
- PhysicsRay Optics and Optical InstrumentsSpherical MirrorsPracticeeasy
A convex mirror is used as a rear-view mirror because it gives:
- A. A magnified image
- B. A real image
- C. An erect image with a wide field of view
- D. An inverted image
- PhysicsRay Optics and Optical InstrumentsPrismPracticeeasy
For a thin prism of angle A and refractive index n, deviation is:
- A. nA
- B. (n − 1)A
- C. A/n
- D. (n + 1)A
- PhysicsRay Optics and Optical InstrumentsOptical InstrumentsPracticeeasy
The magnification of a simple microscope for the relaxed eye is:
- A. D/f
- B. 1 + D/f
- C. f/D
- D. 1 − D/f
- PhysicsRay Optics and Optical InstrumentsApparent DepthPracticeeasy
Apparent depth of a coin at real depth 8 cm in water (n = 4/3) viewed normally is:
- A. 6 cm
- B. 8 cm
- C. 10.6 cm
- D. 4 cm
- PhysicsRay Optics and Optical InstrumentsMirror FormulaPracticemoderate
An object is placed 20 cm from a concave mirror of focal length 15 cm. The image distance is:
- A. 60 cm in front
- B. 8.6 cm behind
- C. 30 cm behind
- D. 12 cm in front
- PhysicsRay Optics and Optical InstrumentsTIRPracticemoderate
Critical angle for a medium of refractive index √2 with respect to air is:
- A. 30°
- B. 45°
- C. 60°
- D. 90°
- PhysicsRay Optics and Optical InstrumentsLens CombinationPracticemoderate
Two thin lenses of powers +5 D and −2 D are in contact. The focal length of the combination is:
- A. +33.3 cm
- B. +50 cm
- C. −33.3 cm
- D. +20 cm
- PhysicsRay Optics and Optical InstrumentsPrismPracticemoderate
A prism of angle 60° gives minimum deviation 30°. Its refractive index is:
- A. 1.33
- B. 1.41
- C. 1.50
- D. 1.73
- PhysicsRay Optics and Optical InstrumentsThin LensPracticemoderate
An object 4 cm tall is placed 30 cm from a converging lens of focal length 20 cm. Image height is:
- A. 8 cm inverted
- B. 2 cm erect
- C. 8 cm erect
- D. 4 cm inverted
- PhysicsRay Optics and Optical InstrumentsSlabPracticemoderate
The refractive index of a glass slab is 1.5 and its thickness 6 cm. The normal shift produced is:
- A. 1 cm
- B. 2 cm
- C. 3 cm
- D. 4 cm
- PhysicsRay Optics and Optical InstrumentsMagnificationPracticemoderate
A concave mirror produces a real image three times the object size when the object is 20 cm away. Focal length is:
- A. 10 cm
- B. 15 cm
- C. 20 cm
- D. 30 cm
- PhysicsRay Optics and Optical InstrumentsTelescopePracticemoderate
In normal adjustment, a telescope has f₀ = 100 cm and f_e = 5 cm. Its magnifying power and length are:
- A. 20 and 105 cm
- B. 20 and 95 cm
- C. 5 and 105 cm
- D. 500 and 105 cm
- PhysicsRay Optics and Optical InstrumentsLens MakerPracticemoderate
A biconvex lens (n = 1.5) with both radii 20 cm has focal length:
- A. 10 cm
- B. 20 cm
- C. 30 cm
- D. 40 cm
- PhysicsRay Optics and Optical InstrumentsDispersionPracticemoderate
Dispersive power of a prism material with n_v = 1.52, n_r = 1.50 and n_y = 1.51 is:
- A. 0.039
- B. 0.020
- C. 0.013
- D. 0.052
- PhysicsRay Optics and Optical InstrumentsSilvered LensPracticeexam
A convex lens of focal length 20 cm is silvered on one side (R = 20 cm). The equivalent mirror has power:
- A. 10 D
- B. 15 D
- C. 20 D
- D. 25 D
- PhysicsRay Optics and Optical InstrumentsPrismPracticeexam
Light is incident at 60° on one face of an equilateral prism and emerges at 60°. The deviation is:
- A. 30°
- B. 45°
- C. 60°
- D. 90°
- PhysicsRay Optics and Optical InstrumentsThin LensPracticeexam
An object approaches a converging lens from infinity to its focus. The image moves:
- A. From focus to infinity
- B. From infinity to focus
- C. From 2f to f
- D. It stays at f
- PhysicsRay Optics and Optical InstrumentsTIRPracticeexam
A fish at depth h in water (n = 4/3) sees the outside world through a cone of half-angle:
- A. 30°
- B. 41.8°
- C. 48.6°
- D. 60°
- PhysicsRay Optics and Optical InstrumentsSeparated LensesPracticeexam
Two lenses of focal lengths 30 cm and −10 cm are separated by 5 cm. The combined focal length is:
- A. −7.5 cm
- B. −12 cm
- C. +12 cm
- D. −15 cm
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