Which description best matches holograms?

a laser hits a splitter and then hits mirrors, creating a 3-dimensional image

atoms are excited and release photons, which bounce back and forth until they are emitted.

a laser hits a splitter and then hits mirrors, creating a 3-dimensional image

light travels down a "hallway" and is then decoded at the end by an optical receiver

What are the main parts of a laser?

A flash tube, two mirrors, atoms

Objective lens (can be either mirrors or glass), eyepiece, aperture, pupil

A laser, shutter, beam splitter, lenses, mirrors and film.

A flash tube, two mirrors, atoms

Cladding, core and buffer coating

Which best matches the description of a microscope?

The instrument collects lots of light from distant objects and brings that light into focus, taking up more space in your field of vision.

light hits a lens and gets bent, creating a real image. the image is then planted onto film and leaves an impression by a chemical reaction

atoms are excited and release photons, which bounce back and forth until they are emitted out of the device.

An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

the length of the telescope tube is 20.02 m

The objective of a compound microscope is essentially:

Convex lens of small focal length and small aperture

A concave lens of small focal length and small aperture

Convex lens of small focal length and large aperture

Convex lens of large focal length and large aperture

Convex lens of small focal length and small aperture

Optical Instruments Class 12 MCQ Questions With Answers Quiz

1.

Which description best matches how a camera works?

Light is gathered from a tiny area of a well-illuminated specimen close by. Then it is brought into focus by a lens.

Light hits a lens, bending it in one direction and a new direction as it leaves. It then converges together and creates a real image, where it is planted onto film through a chemical reaction.

White light travels through pixels, where it then passes through a prism and the 3 primary colors become dispersed so multiple colors are displayed.

Light is collected from distant objects and brought into focus. The eyepiece then takes the light and spreads it out in your field of vision.

1.

Which description best matches how a camera works?

2.

Which description best matches holograms?

3.

What are the main parts of a laser?

4.

Which best matches the description of a microscope?

5.

The power of a thin convex lens of glass is 5 D. When it is immersed in a liquid, then it behaves like a divergent lens of focal length 100 cm. The refractive index of the liquid is:(Given, refractive index of glass = μ = 1.5)

6.

The eyepiece of an astronomical telescope has a focal length of 10 cm. The telescope is focused for normal vision of distant objects when the tube length is 1 m. The focal length of the objective is:

7.

Tom’ lenses of focal lengths ± 15 cm and ± 150 cm are available for making a telescope. To produce the largest magnification, the focal length of the eyepiece should be

8.

A convex lens and a concave lens, each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power of the combination (in dioptres) is

9.

An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

10.

The refractive index of the material of an equilateral prism is √3. What is the angle of minimum deviation?

11.

A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is:

12.

The objective of a compound microscope is essentially:

13.

Finger prints are observed by the use of :

14.

The angular magnification of a system is less than one. Does it mean that the image formed is inverted?

15.

The optical density of turpentine is higher than that of water while its mass density is lower. Figure shows a layer of turpentine floating over water in a container. For which one of the four rays incident on turpentine in figure the path shown is correct?

Time

1. Which description best matches how a camera works?

2. Which description best matches holograms?

3. What are the main parts of a laser?

4. Which best matches the description of a microscope?

5. The power of a thin convex lens of glass is 5 D. When it is immersed in a liquid, then it behaves like a divergent lens of focal length 100 cm. The refractive index of the liquid is:(Given, refractive index of glass = μ = 1.5)

6. The eyepiece of an astronomical telescope has a focal length of 10 cm. The telescope is focused for normal vision of distant objects when the tube length is 1 m. The focal length of the objective is:

7. Tom’ lenses of focal lengths ± 15 cm and ± 150 cm are available for making a telescope. To produce the largest magnification, the focal length of the eyepiece should be

8. A convex lens and a concave lens, each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power of the combination (in dioptres) is

9. An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

10. The refractive index of the material of an equilateral prism is √3. What is the angle of minimum deviation?

11. A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is:

12. The objective of a compound microscope is essentially:

13. Finger prints are observed by the use of :

14. The angular magnification of a system is less than one. Does it mean that the image formed is inverted?

15. The optical density of turpentine is higher than that of water while its mass density is lower. Figure shows a layer of turpentine floating over water in a container. For which one of the four rays incident on turpentine in figure the path shown is correct?

Time

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1.

Which description best matches how a camera works?

2.

Which description best matches holograms?

3.

What are the main parts of a laser?

4.

Which best matches the description of a microscope?

5.

The power of a thin convex lens of glass is 5 D. When it is immersed in a liquid, then it behaves like a divergent lens of focal length 100 cm. The refractive index of the liquid is:(Given, refractive index of glass = μ = 1.5)

6.

The eyepiece of an astronomical telescope has a focal length of 10 cm. The telescope is focused for normal vision of distant objects when the tube length is 1 m. The focal length of the objective is:

7.

Tom’ lenses of focal lengths ± 15 cm and ± 150 cm are available for making a telescope. To produce the largest magnification, the focal length of the eyepiece should be

8.

A convex lens and a concave lens, each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power of the combination (in dioptres) is

9.

An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

10.

The refractive index of the material of an equilateral prism is √3. What is the angle of minimum deviation?

11.

A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is:

12.

The objective of a compound microscope is essentially:

13.

Finger prints are observed by the use of :

14.

The angular magnification of a system is less than one. Does it mean that the image formed is inverted?

15.

The optical density of turpentine is higher than that of water while its mass density is lower. Figure shows a layer of turpentine floating over water in a container. For which one of the four rays incident on turpentine in figure the path shown is correct?