JEE Physics - MCQ Practice Questions
Practice free JEE Physics multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.
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A light ray travels from air into glass with refractive index 1.5. If the angle of incidence is 30°, what is the angle of refraction?
Which of the following phenomena demonstrates the wave nature of light?
The focal length of a convex lens is 15 cm. An object is placed at 30 cm from the lens. Find the position of the image.
What is the critical angle for total internal reflection when light travels from glass (n=1.5) to air (n=1)?
A plane mirror is placed 50 cm from an object. The distance between the object and its image is:
Two slits separated by 0.5 mm are illuminated by light of wavelength 500 nm. The distance to the screen is 1 m. Find the fringe width.
A concave mirror has a focal length of 20 cm. An object is placed at the center of curvature. Where will the image form?
A ray of light is incident on a glass slab of thickness 5 cm and refractive index 1.6. If the incident angle is 45°, find the lateral displacement.
The resolving power of a microscope depends on:
When white light passes through a prism, violet light deviates more than red light. This is because:
An object is placed 10 cm from a concave lens of focal length 20 cm. Find the magnification.
Polarization of light proves that light is:
A thin lens has power +5 diopters. Find its focal length.
In Young's double slit experiment, if one slit is covered with a transparent film of thickness t and refractive index μ, the path difference changes by:
The intensity at a point in the interference pattern of two coherent sources is I₁ and I₂. The resultant intensity is maximum when the phase difference is:
A lens combination consists of a convex lens (f=15 cm) and concave lens (f=-10 cm) in contact. Find the power of combination.
When a convex lens is immersed in water (n=), its focal length compared to air is:
The minimum deviation through a prism occurs when:
The Brewster angle for glass-air interface (n_glass = 1.5) is approximately:
A ray of light travels from medium 1 (refractive index n₁ = 1.5) to medium 2 (refractive index n₂ = 1.0). If the angle of incidence is 30°, what is the angle of refraction?