Ray Optics and Optical Instruments

JEE Main · Physics · 14 past questions

These are the board's own papers. 189 more board questions reprinted in the books we use in class are for signed-in students: sign in.

1. Q1 2026 2 Apr Shift 1

   For a thin symmetric prism made of glass (refractive index 1.5), the ratio of incident angle and minimum…

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2. Q2 2026 2 Apr Shift 1

   Refer the figure given below. $\mu_1$ and $\mu_2$ are refractive indices of air and lens material. The height… (with a figure)

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3. Q3 2026 2 Apr Shift 2

   If sunlight is focused on a paper using convex lens, it starts burning the paper in shortest time when the…

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4. Q4 2026 4 Apr Shift 1

   A rod of length 10 cm lies along the principle axis of a concave mirror of focal length 10 cm as shown in… (with a figure)

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5. Q5 2026 4 Apr Shift 2

   A convex lens is made from glass material having refractive index of 1.4 with same radius of curvature on…

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6. Q6 2026 5 Apr Shift 1

   A ray of light passing through an equilateral prism is having velocity $2.12\times10^{8}$ m/s in the prism…

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7. Q7 2026 5 Apr Shift 1

   A compound microscope is designed with two symmetric biconvex lenses. The objective lens is cut vertically…

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8. Q8 2026 5 Apr Shift 2

   A thin convex lens and a thin concave lens are kept in contact and are co-axial. Which of the following…

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9. Q9 2026 5 Apr Shift 2

   An object $AB$ is placed 15 cm on the left of a convex lens $P$ of focal length 10 cm. Another convex lens…

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10. Q10 2026 6 Apr Shift 1

    A spherical interface lens of radius $R$ separates two media of refractive indices 1 and 1.4 respectively as… (with a figure)

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11. Q11 2026 6 Apr Shift 2

    Angle of minimum deviation is equal to the half of the angle of prism in an equilateral prism. The refractive…

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12. Q12 2026 6 Apr Shift 2

    A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is…

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13. Q13 2026 8 Apr Shift 2

    A thin biconvex lens is prepared from the glass ($\mu = 1.5$) both curved surfaces of which have equal radii…

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14. Q14 2026 8 Apr Shift 2

    Some distant star is to be observed by some telescope of diameter of objective lens a, at an angular…

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