Start learning →

NEET UG Wave Optics — practice questions — page 3

Explore 87 free Wave Optics questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Wave Optics with Quill →

Wave Optics questions and exercises with answers

Showing questions 61–87 of 87.

Two separate sodium lamps light two pinholes. On the screen you see:Read the answer and worked solution →The dark and bright bands on the screen in Young's experiment are called:Read the answer and worked solution →In Young's pattern, consecutive bright fringes are:Read the answer and worked solution →Near the edge of a shadow you see alternate dark and bright bands. This is:Read the answer and worked solution →Diffraction is shown by:Read the answer and worked solution →The rainbow of colours you see on a CD comes from:Read the answer and worked solution →Wiggle a string up and down and a wave runs along it. The displacement is at right angles to the travel, so the wave is:Read the answer and worked solution →Ordinary lamp light passes through one polaroid. Its intensity drops to:Read the answer and worked solution →Two polaroids are set crossed. The light passing through both is:Read the answer and worked solution →Blue sky seen through a rotating polaroid rises and falls in brightness. Sky light is:Read the answer and worked solution →Catch the wave evidenceRead the answer and worked solution →Pop the wave optics peopleRead the answer and worked solution →Steer into the wave laneRead the answer and worked solution →Slice the optics wordsRead the answer and worked solution →Wave or particleRead the answer and worked solution →Which phenomenon is itRead the answer and worked solution →One word is wrongRead the answer and worked solution →Wave optics bingoRead the answer and worked solution →Light passes from air to glass ($n = 1.5$). Brewster's angle is:Read the answer and worked solution →HUYGENS' PRINCIPLE states that every point on a wavefront acts as a:Read the answer and worked solution →NEET · Physics · Interference or DiffractionRead the answer and worked solution →BREWSTER'S LAW for the polarising angle θ_B relates to the refractive index n as:Read the answer and worked solution →In single-slit diffraction, the central maximum is:Read the answer and worked solution →In Young's experiment, a BRIGHT fringe (constructive interference) requires path difference = ?Read the answer and worked solution →In Young's double-slit experiment, the fringe width β is given by:Read the answer and worked solution →The resolving power (RP) of a diffraction grating with N slits in the m-th order is:Read the answer and worked solution →Polarisation of light is direct experimental evidence that light is a:Read the answer and worked solution →

Worked practice questions

Two separate sodium lamps light two pinholes. On the screen you see:

  1. Coloured fringes
  2. Curved fringes
  3. No fringes at all
  4. Sharp fringes
Show answer and solution

Correct answer: C. No fringes at all

1. Independent lamps change phase abruptly and randomly. 2. Their intensities simply add. 3. So no fringes appear. _Source: syllabus Physics Part II, Chapter 10, Wave Optics._

Open this question →

The dark and bright bands on the screen in Young's experiment are called:

  1. Ripples
  2. Streaks
  3. Shadows
  4. Fringes
Show answer and solution

Correct answer: D. Fringes

1. Coherent waves add at some points and cancel at others. 2. The screen shows alternate dark and bright bands. 3. These bands are called fringes. _Source: syllabus Physics Part II, Chapter 10, Wave Optics._

Open this question →

In Young's pattern, consecutive bright fringes are:

  1. Equally spaced
  2. Randomly spaced
  3. Ever closer
  4. Ever wider
Show answer and solution

Correct answer: A. Equally spaced

1. Bright fringes sit at whole multiples of a fixed distance. 2. That distance is the fringe width. 3. So the fringes are equally spaced. _Source: syllabus Physics Part II, Chapter 10, Wave Optics._

Open this question →

How to practise

  1. Choose a Wave Optics question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Wave Optics practice for NEET UG. Read explanations as you go. No signup form needed to start.

Practise Wave Optics →

More Physics topics

Electric Charges and FieldsMoving Charges and MagnetismRay Optics and Optical InstrumentsSemiconductor ElectronicsCurrent ElectricityDual Nature of Radiation and MatterKinetic Theory & OscillationsSystem of Particles and Rotational Motion