Ray Optics (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 100  104 of 105
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Question number: 100
» Ray Optics » Lens Maker's Formula and Lens Formula
Appeared in Year: 2016
Question
A person can see clearly object only when they lie between and from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be:
Choices
Choice (4)  Response  

a.  Convex, diopter 

b.  Concave, diopter 

c.  Convex, diopter 

d.  Concave, diopter 

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Question number: 101
» Ray Optics » Lens Maker's Formula and Lens Formula
Appeared in Year: 2016
Question
Two identical glass equiconvex lenses of focal length each are kept in contact. The space between that two lenses in filled with water . The focal length of the combination is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 102
» Ray Optics » Reflection and Refraction of Light » Smooth Surface
Appeared in Year: 2016
Question
An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is –
Choices
Choice (4)  Response  

a.  12 

b.  10 

c.  8 

d.  16 

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Question number: 103
» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes
Appeared in Year: 2017
Question
The ratio of resolving powers of an optical microscope for two wavelengths and is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 104
» Ray Optics » Reflection and Refraction of Light » Smooth Surface
Appeared in Year: 2017
Question
A beam of light from a source is incident normally on a plane mirror fixed at a certain distance from the source. The beam is reflected back as a spot on a scale placed just above the source . When the mirror is rotated through a small angle , the spot of the light is found to move through a distance on the scale. The angle∴ is given by –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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