can you please help me answer these questions I just need to double check them they have to do with Refraction of Waves pls answer ALL of them thank you

1) A film projector lens is an example of

Select one:

a. a converging lens to view the virtual image of an object

b. a converging lens to view the real image of an object

c. a diverging lens to view the virtual image of an object

d. a diverging lens to view the real image of an object

2) The radius of curvature of a lens is

Select one:

a. the distance between the centre of curvature and the optical center of the lens

b. the distance between the optical centre and the principal focus

c. the distance between the centre of curvature and the principal focus

d. infinite

3)If an upright image appears on the centre of curvature of a convex lens.

Select one:

a. The object would have to be inverted and located at the principal focus

b. The object would have to be inverted and also be located at the centre of curvature on the other side of the lens

c. The object is the same size as the image and it is also upright

d. The object would have to be inverted and also be located at the same centre of curvature that the image is found

4)If a real image is seen on a screen and it appears to be smaller in size than the object. The lens must be:

Select one:

a. a diverging lens

b. a converging lens

c. a concave lens

d. a triangular prism

5)Light rays entering glass (n = 1.52) from water (n = 1.33) would;

Select one:

a. speed up

b. refract towards the normal

c. refract away from the normal

d. reflect straight back

6)The magnification (H_i/H_o) which results when an object is placed between the principal focus and a convex lens is:

Select one:

a. (H_i/H_o) = 1

b. (H_i/H_o) > 1

c. (H_i/H_o) < 1

d. (H_i/H_o) = infinity

7)An object is located in front of a convex lens and it is located on the center of curvature. Which of the statements below is not correct.

Select one:

a. H_i = H_o

b. The image is upright

c. The image is real

d. S_i = S_o

8)An object is located in front of a convex lens and it is located between the lens and the principal focus. Which of the statements below is not correct.

Select one:

a. H_i = H_o

b. The image is upright

c. The image is virtual

d. H_i > H_o

9)An object is located at 2f (twice the focal length) from a converging lens. Which of the statements below is not correct about the image.

Select one:

a. H_i = H_o

b. The image is inverted

c. The image is virtual

d. The image is real

10)A fisherman standing in a shallow pond such that his head is above the water wishes to harpoon a fish which he can see in the water. Choose the statement below which best explains what he should do and why.

a. He should aim below what he sees because the light rays coming from the fish are refracted away from the normal causing the fish to appear higher than it is.

b. He should aim above what he sees because the light rays coming from the fish are refracted away from the normal causing the fish to appear higher than it is.

c. He should aim above what he sees because the light rays coming from his eyes to the fish are refracted away from the normal causing the fish to appear higher than it is.

d. He should aim below what he sees because the light rays coming from his eyes to the fish are refracted towards the normal causing the fish to appear higher than it is.

11)A fisherman standing in a shallow pond such that his head including hat are above the water is being observed by a fish swimming in the water. Choose the statement below which best describes where the fisherman's hat appears to the fish.

a. The hat appears to the fish to be above its actual position because the light rays coming from the hat are refracted away from the normal causing the hat to appear higher than it is.

b. The hat appears to the fish to be above its actual position because the light rays coming from the hat are refracted towards the normal causing the hat to appear higher than it is.

c. The hat appears to the fish to be below its actual position because the light rays coming from the hat are refracted towards the normal causing the hat to appear lower than it is.

d. The hat appears to the fish to be below its actual position because the light rays coming from the hat are refracted away from the normal causing the hat to appear lower than it is.

12)A student observes that light going from medium A into medium B has an angle of incidence of 30^o and an angle of refraction of 20^o. For the situation described above choose the correct statement.

Select one:

a. Total internal reflection can occur when light goes from medium A into medium B.

b. The critical angle between these two substances will have a value of 90^o.

c. Total internal reflection cannot occur when light goes from medium A into medium B.

d. Medium A is optically denser than medium B.

13)Laser light is sent parallel to the principal axis and is refracted by a converging lens to determine the focal length of the lens. If two different lasers are used and one sends red light while another sends blue light through the lens:

Select one:

a. The blue light will be refracted more by the lens so that when it passes through the principal focus on the other side of the lens that point will be closer to the lens than would be the case when the red laser light is used.

b. The red light will be refracted more by the lens so that when it passes through the principal focus on the other side of the lens that point will be closer to the lens than would be the case when the blue laser light is used.

c. Both the blue and laser light will be refracted the same amount by the lens and as a result the focal point on which they both go through will be located the same distance from the lens.

d. Individual colours of light cannot be refracted by a lens so therefore it is impossible to determine the focal length of a lens using this procedure.

14)Light coming from the sun;

a. is refracted by the atmosphere away from the normal causing the sun to appear higher in the sky than it actually is.

b. is refracted by the atmosphere towards the normal causing the sun to appear lower in the sky than it actually is.

c. is refracted by the atmosphere towards the normal causing the sun to appear higher in the sky than it actually is.

d. is refracted by the atmosphere away from the normal causing the sun to appear lower in the sky than it actually is.

15)If the image produced by a lens is virtual, upright and appears to be smaller than the object, to be able to locate the image

Select one:

a. one would have to look through a convex lens

b. one would have to look through a converging lens

c. one would have to look through a diverging lens

d. one would have to place a screen on the other side of a diverging lens that the object is located on and have the image form on the screen

16)When a light ray strikes the interface between two substances at an angle of 0^o to the normal, the angle of refraction would be;

Select one:

a. 90^o

b. 0^o

c. the critical angle

d. equal to the angle of reflection

17)An object is located in front of a diverging lens. Which of the statements below is not correct.

Select one:

a. H_i = H_o

b. H_i< H_o

c. The image is virtual

d. The image is upright.

18)An object is located in front of a convex lens and it is located between the lens and the principal focus. Which of the statements below is not correct.

Select one:

a. H_i = H_o

b. The image is upright

c. The image is virtual

d. H_i > H_o

19)An object is located in front of a convex lens and it is located further away from the lens than the principal focus. Which of the statements below can not be correct.

Select one:

a. H_i = H_o

b. The image is upright

c. The image is real

d. H_i > H_o

20)When a beam of red light hits a prism

Select one:

a. total internal reflection occurs

b. diffraction occurs

c. blue and orange light will exit the prism

d. the light exiting the prism will still be red