Ray OpticsResolving Power of Microscopes and Astronomical Telescopes (AIIMS Physics): Questions 1  4 of 4
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Question number: 1
» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes
Appeared in Year: 2005
Question
A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2cm. If this telescope is used to see a 50 meter tall building at a distance of 2km, what is the height of the image of the building formed by the objective lens – [AIIMS]
Choices
Choice (4)  Response  

a.  2 cm 

b.  1 cm 

c.  5 cm 

d.  10 cm 

Question number: 2
» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes
Appeared in Year: 2005
Assertion (Ꭺ)
The resolving power of a telescope is more if the diameter of the objective lens is more.
Reason (Ꭱ)
Objective lens of large diameter collects more light.
Choices
Choice (4)  Response  

a.  Both Ꭺ and Ꭱ are false 

b.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

c.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

d.  Ꭺ is true but Ꭱ is false 

Question number: 3
» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes
Question
A telescope has an objective lens of focal length 100 cm and an eye piece with focal length 5cm. If this telescope is used to see a 30 meter tall building at a distance of 1km, what is the height of the image of the building formed by the objective lens –
Choices
Choice (4)  Response  

a.  27 cm 

b.  3 cm 

c.  1 cm 

d.  9 cm 

Question number: 4
» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes
Question
A telescope has an objective lens of focal length 500 cm and an eye piece with focal length 10 cm. If this telescope is used to see a 80 meter tall building at a distance of 5km, what is the height of the image of the building formed by the objective lens –
Choices
Choice (4)  Response  

a.  10 cm 

b.  15 cm 

c.  8 cm 

d.  6 cm 
