June 2022 Physics Regents Questions 21-30 Question Preview (ID: 59781)

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In medium X, light with a wavelength of 3.44 x 10^−7 meter travels at 2.20 x 10^8 meters per second. In medium Y, this light has a wavelength of 3.12 x 10^−7 meter. What is the speed of this light in medium Y?

a) 2.00 x 10^8 m/s

b) 2.20 x 10^8 m/s

c) 2.43 x 10^8 m/s

d) 3.00 x 10^8 m/s

If several resistors are connected in series in an electrical circuit, the potential difference across each resistor

a) varies directly with the resistance of each resistor

b) varies inversely with the resistance of each resistor

c) varies inversely with the square of the resistance of each resistor

d) is independent of the resistance of each resistor

Which arrow represents the motion of a particle at point P at the instant shown?

a) 1

b) 2

c) 3

d) 4

An amplified sound wave produced by an opera singer shatters a glass. Which phenomenon best explains this event?

a) diffraction

b) reflection

c) refraction

d) resonance

A tuning fork is used to produce a sound wave having a frequency of 512 hertz. What is the wavelength of the sound wave in air at STP?

a) 0.646 m

b) 0.646 m

c) 3.31 x 10^2 m

d) 5.86 x 10^5 m

Which list identifies portions of the electromagnetic spectrum in order of increasing frequency?

a) gamma ray, infrared, visible, ultraviolet

b) ultraviolet, visible, infrared, gamma ray

c) infrared, visible, ultraviolet, gamma ray

d) gamma ray, ultraviolet, visible, infrared

An acoustic organ is a musical instrument with pipes. The oscillation of air molecules in the pipes of the organ produces sound waves that are

a) electromagnetic and longitudinal

b) electromagnetic and transverse

c) mechanical and longitudinal

d) mechanical and transverse

The magnitude of electric force exerted on a small positive charge located between two oppositely charged parallel plates is

a) smallest near the positive plate

b) smallest near the negative plate

c) greatest midway between the plates

d) the same everywhere between the plates

Which phenomenon represents a wave spreading out behind a barrier as the wave passes by the edge of the barrier?

a) diffraction

b) refraction

c) reflection

d) interference

What is the resistance of copper wire B at 20°C?

a) 0.0430 Ω

b) 0.0860 Ω

c) 0.172 Ω

d) 0.344 Ω

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