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SCIENCE > 2nd Periodic Exam Reviewer (MIRRORS AND LENS) > Flashcards

2nd Periodic Exam Reviewer (MIRRORS AND LENS) Flashcards

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1
Q

Bouncing off of light rays

A

Reflection

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2
Q

Ray of light approaching the mirror

A

Incident ray

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3
Q

Ray of light which leaves the mirror

A

Reflected Ray

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4
Q

An imaginary line perpendicular to the surface of the mirror

A

Normal Line

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5
Q

It states that the angle of incidence is equals to the angle of reflection.

A

Law of Reflection

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6
Q

The left side of the object appears as the right side of the image and vice versa.

A

Mirror Left-Right Reversal

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7
Q

Images in PLANE MIRROR

A

L - behind the mirror
O - always upright
S - always same size
T - always Virtual

Always same distance of the object

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8
Q

Called as CONVERGING MIRROR because the parallel incident rays converge/meet at the focal point.

A

Concave Mirror

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9
Q

Called as DIVERGING MIRROR because the parallel rays diverge after reflection.

A

Convex Mirror

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10
Q

The image formed in a CONVEX MIRROR is

A

Always formed upright/erect, reduced, and virtual.

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11
Q

They are used in side mirrors up among automobiles and department stores.

A

Convex Mirror

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12
Q

The four principal rays:

A

P-F RAYS
F-P RAYS
C-C RAYS
V RAY

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13
Q

It is the bending of light when it travels form one medium to another of different optical densities.

A

Refraction

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14
Q

It is thicker in the center than edges.

A

Convex Lens

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15
Q

Called as CONVERGING LENS as lights bend to a point beyond the lens on the axis.

A

Convex Lens

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16
Q

It is thicker at the edges and thinner at the center

A

Concave Lens

17
Q

Called as DIVERGING LENS

A

Concave Lens

18
Q

Image of Concave Lens forms ___________.

A

Always Upright
Always Reduced
Virtual Images

19
Q

Where should an object be placed in front of a concave mirror so that the image will have same size as the object

A

At the center of curvature (c)

20
Q

An object is placed in front of a converging lens at a distance less than F. The image image produced by the lens is _________.

A

Virtual
Upright
Enlarged

21
Q

When a small object is placed on the principal axis of a concave mirror between the focus and a mirror

A

Erect, Magnified, Virtual

22
Q

Which of the following are the characteristics of the image formed in the eyepiece of a microscope?

A

Virtual and Enlarged

23
Q

An object is place in front of a converging lens at a distance between F and 2F. The image produced by the lens is __________.

A

Real, Inverted, Enlarged

24
Q

What is the similarity between microscopes and refracting telescope?

A

They produce magnified image of distant objects.

25
Q

An object is placed in front of a diverging lens at a distance between F and 2F. The image produced by the lens is __________.

A

Virtual, Upright, Reduced

26
Q

In concave mirror, size of the object depends upon

A

Position of object

27
Q

What kind of lens here it is THINNER in the middle than at the edge?

A

Concave Lens

28
Q

If the size of the image formed by a converging lens is the same as the object, the object distance is __________.

A

Equal to the image distance

29
Q

Which device magnifies images of minute (very small) things, otherwise invisible to the naked eye?

A

Optical Microscope

30
Q

If you look down on a pool of wavy water, you can’t see your face clearly. Why?

A

Irregular Reflection of light happens on the surface of wavy water

31
Q

You see the reflection of the clock without numbers in your plan e mirror. The image formed by the hands of the clock shows the time of 3:30. What is the REAL TIME?

A

8:30

32
Q

Which phenomenon of light explains the formation of image by a lens?

A

Refraction

33
Q

For a concave mirror, focus is _________.

A

Real

34
Q

A mirror whose inner curved surface is reflecting is

A

Concave Mirror

35
Q

For a convex mirror focus is

A

Virtual

36
Q

A girl wants to see an enlarged image of her face. What can serve her purpose well?

A

Concave Mirror

37
Q

The characteristics of the final image formed by a compound microscope is

A

Virtual, Inverted, and Enlarged

SCIENCE (3 decks)

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