Refractions Quiz

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True/false statements on mirrors, lenses, and refraction

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sofiaa

India

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Refractions Quiz


Refractions QuizVersion en ligne True/false statements on mirrors, lenses, and refraction par sofiaa 1 3. Light travels in straight lines in all media without any bending (no refraction). Yes No 2 The lens maker's equation does not apply to thin lenses. Yes No 3 1. The angle of incidence equals the angle of reflection, and both rays lie in the same plane as the normal. Yes No 4 5. The refractive index of a medium is the ratio of the speed of light in air to the speed of light in that medium. Yes No 5 The focal length of a lens is independent of the material's refractive index. Yes No 6 A concave lens (diverging) always forms a virtual image for any object distance. Yes No 7 The lens maker's equation 1/f = (n-1)(1/R1 - 1/R2) relates focal length to curvature and refractive index for thin lenses. Yes No 8 A lens with both radii of curvature positive always produces a real image. Yes No 9 The focal length of a lens depends on its refractive index and radii of curvature (R1 and R2). Yes No 10 In lens equations, the image distance is positive for real images and negative for virtual images. Yes No 11 A convex lens can only form virtual images. Yes No 12 2. The focal length of a spherical mirror is equal to its radius of curvature (f = R). Yes No 13 4. A ray passing through the optical center of a lens is always deviated. Yes No 14 A concave lens can converge light to a single point. Yes No 15 5. A concave lens can produce a real image under some object positions. Yes No 16 A convex lens (converging) can form a real image when the object is beyond its focal length. Yes No

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Refractions Quiz

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À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Refractions QuizVersion en ligne

par sofiaa

3. Light travels in straight lines in all media without any bending (no refraction).

The lens maker's equation does not apply to thin lenses.

1. The angle of incidence equals the angle of reflection, and both rays lie in the same plane as the normal.

5. The refractive index of a medium is the ratio of the speed of light in air to the speed of light in that medium.

The focal length of a lens is independent of the material's refractive index.

A concave lens (diverging) always forms a virtual image for any object distance.

The lens maker's equation 1/f = (n-1)(1/R1 - 1/R2) relates focal length to curvature and refractive index for thin lenses.

A lens with both radii of curvature positive always produces a real image.

The focal length of a lens depends on its refractive index and radii of curvature (R1 and R2).

In lens equations, the image distance is positive for real images and negative for virtual images.

A convex lens can only form virtual images.

2. The focal length of a spherical mirror is equal to its radius of curvature (f = R).

4. A ray passing through the optical center of a lens is always deviated.

A concave lens can converge light to a single point.

5. A concave lens can produce a real image under some object positions.

A convex lens (converging) can form a real image when the object is beyond its focal length.