NEET Physics: Ray Optics — MCQ Test 10

Q6. A ray of light passes from glass (\( n = 1.52 \)) to air at an angle of incidence of \( 45^\circ \). What happens?

Q7. A simple microscope with a focal length of \( 10 \, \text{cm} \) forms an image at \( 25 \, \text{cm} \). What is the magnification?

Q8. A prism of angle \( 60^\circ \) has a refractive index of \( 1.4 \). What is the angle of minimum deviation?

Q9. In a concave mirror, under what condition is the image formed virtual and magnified?

Q10. What is the primary advantage of using a combination of lenses in optical instruments like microscopes?

Q11. In a plane mirror, why does the image distance equal the object distance?

Q12. In a plane mirror, what property ensures that the image is not distorted?

Q13. An object at a depth of \( 19.95 \, \text{cm} \) in water (\( n = 1.33 \)) is viewed normally. What is the apparent depth?

Q14. In a refracting telescope, why does the objective lens have a larger aperture than the eyepiece?

Q15. A lens has a power of \( +2.5 \, \text{D} \). What is its focal length in centimeters?

NEET Physics — Ray Optics

Free MCQ Test 10 of 20

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1Question 1 of 15
Medium

A prism of angle \( 40^\circ \) and refractive index \( 1.5 \) produces what minimum deviation?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Ray Optics. It contains 15 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Refractive, Produces, Deviation, Reflecting, Telescope, and Curvature.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A prism of angle \( 40^\circ \) and refractive index \( 1.5 \) produces what minimum deviation?

  • A. 15°
  • B. 18°
  • C. 22°
  • D. 20°

Q2. Why does a concave mirror used in a reflecting telescope require precise curvature?

  • A. To increase chromatic aberration
  • B. To reduce the focal length
  • C. To enhance magnification
  • D. To ensure rays converge to a single point

Q3. Why does a convex lens produce chromatic aberration when used with white light?

  • A. Due to light reflection
  • B. Due to uniform refraction
  • C. Due to lens thickness
  • D. Due to wavelength-dependent refraction

Q4. An object is at a depth of \( 13.3 \, \text{cm} \) in a medium with refractive index \( 1.33 \). What is the apparent depth?

  • A. 10 cm
  • B. 12 cm
  • C. 14 cm
  • D. 16 cm

Q5. A convex lens (\( f = 30 \, \text{cm} \)) and a concave lens (\( f = 15 \, \text{cm} \)) are in contact. What is the effective focal length?

  • A. -20 cm
  • B. -25 cm
  • C. -30 cm
  • D. -35 cm

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