# Problem 1: A light ray passes from air through glass into water. The index of refraction of the glass is 1. The angle of the refracted ray in the…

**Problem 1: **A light ray passes from air through glass into water. The index of refraction of the glass is 1.5. The angle of the refracted ray in the water is 43°.**Part (a)** Draw a qualitative picture (ray diagram) of the situation. Make it clear if it bends towards or away from the normal (perpendicular) at each interface. Label any known angles.

**EssayAdvanced** :

= __________________________________________

**Part (b)** Determine the angle of the incident ray at the air-glass interface. Show your work.

**EssayAdvanced** :

= __________________________________________

**Problem 2: **Light is incident on the boundary between two media at an angle of 25°. The refracted light makes an angle of 45°.Determine the critical angle for light incident on the same boundary. Show your work.

**EssayAdvanced** :

= __________________________________________

**Problem 3: **A swimmer underwater shines a laser pointer at the surface of the water (water/air interface) from under the water.**Part (a)** Will a person standing at the side of the pool see the laser light if the incident angle is 45°? Show your work.

**EssayAdvanced** :

= __________________________________________

**Part (b)** Will a person standing at the side of the pool see the laser light if the incident angle is 52°? Show your work.

**EssayAdvanced** :

= __________________________________________

**Part (c)** Will a person standing at the side of the pool see the laser light if the incident angle is 57°? Show your work.

**EssayAdvanced** :

= __________________________________________

**Problem 4: **Use ray diagrams and calculations to determine the location of the image of an object in the following situations:**Part (a)** An object is 15cm from a convex lens of focal length +20cm.

**EssayAdvanced** :

= __________________________________________

**Part (b)** An object is 15cm from a concave lens of focal length -20cm.

**EssayAdvanced** :

= __________________________________________

**Part (c)** Calculate the magnification in part (a) and determine if the image is upright or inverted, real or virtual.

**EssayAdvanced** :

= __________________________________________

**Part (d)** Calculate the magnification in part (b)and determine if the image is upright or inverted, real or virtual.

**EssayAdvanced** :

= __________________________________________

**Problem 5: **You wish to photograph a 1.5m tall person with camera of focal length 0.08m. The image cannot be more than 0.03m tall.**Part (a)** What is the closest distance the person can stand to the lens to meet these criteria? Show your work.

**EssayAdvanced** :

= __________________________________________

**Part (b)** How far should the image sensor be from the lens for the object distance (nearest distance) calculated in part (a)? Show your work.

**EssayAdvanced** :

= __________________________________________

## Leave a Reply

Want to join the discussion?Feel free to contribute!