01: A diffraction grating with 4.50 x 30 inom produces a second onder begin 250 to the central maximum. The wwwlength of the incident
A. 2.13 x 10 m
B1.06 x 10"
C4.70 x 10m
D.9.39 x 10m

Q2: Polarization of light can best be explained by considering light to behave as a
A. Photon
B. Quantum
C. Transverse Wave
D. Longitudinal Wave

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)