Question

2. The Points A through E on the Figurel represent various distances from the center of the current-carrying wire. Which point experiences the strongest magnetic field?) (A) Point A (B) Point C (C) Point D (D) Point E 3.A wave has a frequency of 100 Hz and a wavelength of 1 m. What is the velocity of the wave? (A) 0.01 m/s (B)1 m/s (C)10 m/s (D) 100 m/s Figurel 4. A wave of light 638 nm) enters a block of material. The wavelength of light within the material is 510 nm. What is the index of refraction of the material? (A) 0.5 (B) 0.8 (C) 1.2 (D) 1.25 5. A jackhammer operator wears a set of protective headphones. Through the headphones, a sound wave is broadcast that is 180° out of phase with the jackhammer sound wave. The result is that he does not hear the sound of the jackhammer. The two sound waves are an example of which of the following? (A) Standing wave (B) Transverse wave (C) Destructive interference (D) Constructive interference

Answer 1

Soln2.option D

Soln3.option D

Soln4.option D

Soln5.option C