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NEET UG Ray Optics and Optical Instruments — practice questions — page 5

Explore 170 free Ray Optics and Optical Instruments questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Ray Optics and Optical Instruments questions and exercises with answers

Showing questions 121–150 of 170.

Fill the gaps on ray opticsRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: instrumentsRead the answer and worked solution →NEET · Physics · Image — Real or VirtualRead the answer and worked solution →Complete the definition of lens powerRead the answer and worked solution →Tap every statement true of refractionRead the answer and worked solution →Order the reasoning: why an optical fibre worksRead the answer and worked solution →True or false: mirrors and lensesRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Complete the condition for total internal reflectionRead the answer and worked solution →Two thin lenses of powers $+5\,\text{D}$ and $-3\,\text{D}$ are placed in CONTACT. The total power of the combination isRead the answer and worked solution →Match each instrument to its magnifying powerRead the answer and worked solution →NEET · Physics · True or False — OpticsRead the answer and worked solution →Flip and pair: symbol with meaningRead the answer and worked solution →True or false: the sign conventionRead the answer and worked solution →Snell's law of refraction at the boundary between two media of refractive indices $n_1$ and $n_2$ statesRead the answer and worked solution →The POWER of a lens (in diopters, D) is defined asRead the answer and worked solution →An object is placed 30 cm from a concave mirror of focal length 20 cm. The image distance isRead the answer and worked solution →Converging or diverging?Read the answer and worked solution →True or false: optical fibresRead the answer and worked solution →Reading the laws backRead the answer and worked solution →The relationship between the focal length $f$ and the radius of curvature $R$ for a SPHERICAL MIRROR isRead the answer and worked solution →A converging lens of focal length $20\,\text{cm}$ produces a real image at $30\,\text{cm}$ from the lens. The object distance is closest toRead the answer and worked solution →When light travels from one medium to another, which property of the wave REMAINS UNCHANGED?Read the answer and worked solution →An object is placed at the FOCUS of a concave mirror ($u = f$, both negative). The image forms atRead the answer and worked solution →The phenomenon by which the apparent position of a star near the horizon appears slightly higher than its actual position is calledRead the answer and worked solution →The power P of a lens of focal length f (in metres) is given byRead the answer and worked solution →Refractive index of water with respect to air is 4/3. The critical angle for a water–air interface is approximatelyRead the answer and worked solution →Light passes from air (n=1) into glass (n=1.5) at an incidence angle of 60°. Using Snell's law, the angle of refraction isRead the answer and worked solution →

Worked practice questions

Fill the gaps on ray optics

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Missing parts
  1. Answer
    converge
    Choices
    1. converge
    2. diverge
    3. disperse
  2. Answer
    25
    Choices
    1. 25
    2. 50
    3. 75
  3. Answer
    objective
    Choices
    1. objective
    2. eyepiece
    3. condenser
  4. Answer
    distant
    Choices
    1. distant
    2. tiny
    3. hidden
Complete the statement
A concave mirror makes parallel rays {0}. The near point is about {1} cm. The lens nearest the object is the {2}. A telescope magnifies {3} objects.
Instructions
Tap a word to drop it into the empty slot.
_Source: syllabus Physics Part II, Chapter 9, Ray Optics and Optical Instruments._

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Spot the one that does not fit

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Questions
  1. Items
    1. Rays diverge
    2. Rays converge
    3. Focus in front
    4. Concave mirror
    Odd item
    Rays diverge
  2. Items
    1. Objective lens
    2. Eyepiece lens
    3. Compound scope
    4. Angle of prism
    Odd item
    Angle of prism
  3. Items
    1. Distant objects
    2. Cassegrain
    3. Mirror objective
    4. Simple magnifier
    Odd item
    Simple magnifier
  4. Items
    1. Angle of incidence
    2. Angle of emergence
    3. Angle of deviation
    4. Focal plane
    Odd item
    Focal plane
Instructions
Tap the item that does not belong with the rest.
_Source: syllabus Physics Part II, Chapter 9, Ray Optics and Optical Instruments._

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Spot the one that does not belong

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Questions
  1. Items
    1. Diamond's sparkle
    2. Mirage
    3. Rainbow
    Odd item
    Rainbow
  2. Items
    1. Snell's law
    2. Mirror equation
    3. Thin lens formula
    Odd item
    Snell's law
  3. Items
    1. Dioptre
    2. Metre
    3. Power
    Odd item
    Metre
  4. Items
    1. Objective
    2. Eyepiece
    3. Critical angle
    Odd item
    Critical angle
Each group is one summary point. Source: syllabus Physics Part II, Ch 9 Ray Optics and Optical Instruments.

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