Which statements are true about a virtual image? (there may be more than one correct choice.)

All rays that are parallel to the principle axis in a concave mirror shows Select one: O a. Towards the focal point O b. Amethod from the focal allude O c. Ameans from the facility of curvature O d. Towards the facility of curvature
Which statements are true around a VIRTUAL image? (There may be more than one correct alternative.) Select one or more: a. A concave lens constantly creates a online image. b. It cannot be photographed. c. A airplane mirror constantly creates a virtual picture. O d. Its place can be calculated, but it cannot be perceived directly by your eye without making use of auxiliary lenses. e. It cannot be regarded on a screen.
The focal size is equal to the: Select one: O a. diameter of curvature O b. radius of curvature O c. fifty percent radius of curvature O d. half diameter of curvature
A virtual photo is one: Select one: O a. towards which light rays converge and pass with O b. from which light rays diverge as they pass with O c. towards which light rays converge yet execute not pass with O d. from which light rays diverge yet execute not pass with O e. through a ray normal to a mirror passing with it
The distance from facility of mirror, C to the pole of mirror is given as Select one: O af O b. 2f O c. None O d. 2R
An picture that is created at the earlier of the mirror is shelp to be Select one: O a. Virtual photo O b. Real image O c. Inverted picture O d. Magnified photo

1. All rays that are parallel to the principle axis in a concavemirror reflects

a. Towards the focal point

EXPLANATION:

The basic laws of reflection are the same for both the planesurchallenge and also the curved surface. On curved surconfront, we first draw atangent at a point and also then attract a perpendicular to that tangent atthat suggest. Then we have the right to specify the angle of incidence and angle ofreflection from this normal. The normal always a line that joincenter of curvature and also the point of incidence of the ray. Theangle of incidence and the angle of reflection are equal to eachother. The event ray, the normal, and also the reflected ray are inthe exact same airplane.For any spherical mirror, we can watch that the focal suggest situatedin between the pole and center of curvature of the sphericalmirror. So when numerous parallel rays ( parallel to the principalaxis) event on the concave mirror, they need to obey the regulation ofreflection, and also all reflected rays converge or fulfill to a particularsuggest, which is known as a focal allude. It is experimentallyverified. That is why reflected rays from the concave mirrorconverges to its focal allude.

You watching: Which statements are true about a virtual image? (there may be more than one correct choice.)

2. The statements that are true about the online image are

a. A concave lens constantly develop a digital photo.

EXPLANATION: Since the all rays diverge from the concave lens,they never before converge. Because of this it appears that the arise rays appearto converge. So a concave lens always create a digital photo.

c. A airplane mirror always develop a virtual photo.

EXPLANATION: Because the reflected ray from the airplane mirrorconstantly diverge, and they can not converge anymethod. so it seems thatthe reflected rays appear to come from a suggest behind the mirror.That is why A plane mirror always form a digital photo.

e. It have the right to not be regarded on a display.

EXPLANATION: Because virual image form practically, i.e, virtualpicture seems to appear from a allude not originated in genuine. That iswhy we deserve to not perceived the virtual image on a screen.

Option (b) and (d) have the right to not be true. Option (b) deserve to not be truebereason digital imperiods deserve to be photographed. Because camera is madeof lens with which we have the right to capture both the real and virtualimeras of the object. Option (d) deserve to not be true bereason eye act asa lens. so we can watch the online picture directly.

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3. The focal size is equal to the

c. Half the radius of the curvature.

EXPLANATION: The formula of lens is

*

Where v= image distance

u= object distance

f= focal length

R= radius of curvature.

so, f= R/2

4. Virtual photo is

d. From which light rays diverge but carry out not pass through.

EXPLANATION: From the definition of digital photo the light rayshow up to diverge from a suggest yet in actual they are not passvia it.

5. The distace from the center of the mirror, c to the pole ofthe mirror is offered as

b. 2f

EXPLANATION: We know, 1/f= 2/R

Therfore R =2f. R= distance betwwen c and pole of themirror.

6. An image that is created at the earlier of the mirrror is said tobe

a. Virtual image.

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EXPLANATION: Virtual photo constantly develop at the back of the mirrorand the genuine photo constantly form infront of the mirror.