A light ray in water is incident on a boundary with air at an angle of 22°. The refractive index of water is 1.33 and that of air is 1.00. What is the angle of refraction in air?

A) 15°

B) 22°

C) 30°

D) 45°

If a magnet is broken into two pieces, what happens to the magnetic poles? One piece will have a north pole, while the other piece will have a south pole. Each piece will still have a north pole and a south pole.

A fisherman noticed that a wave strikes the boat side every 5 seconds. The distance between two consecutive crest is 1.5m. What is the period frequency of the wave?

What is the name of the tool to measure size by force

Paul is driving on a sunny day what glasses should he wear

Dr. west mixes zinc (zn) and hydrochloric acid (hcl) together in his laboratory. the two chemicals react to form hydrogen gas (h2) and zinc chloride (zncl2).

It takes 3.3 j of work to stretch a hooke's-law spring 15 cm from its unstressed length. how much the extra work is required to stretch it an additional 11.3 cm? answer in units of j.

Reading Africa's Big Break 1. Which of the following best describes the purpose of the article? a. The passage is an advertisement to encourage you to buy something. b. The passage is to persuade you to make a certain decision. c.

What must quantities have before they can be added or subtracted?

A brick sits on the top of a hill with a gravitational potential energy of 245 J. To determine the gravitational potential of the brick, we would also need to know which one of the following

What is the current produced by a potential difference of 240 Volts through a resistance of. 2 ohms