# Ray Optics-Resolving 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

MCQ▾

### 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-Reason▾

### 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

MCQ▾

### 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

MCQ▾

### 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

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