Author Question: Monochromatic light of wavelength 500 nm is incident normally on a grating. If the third-order ... (Read 147 times)

mynx · **on:** Jul 29, 2018

Monochromatic light of wavelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern is observed at 32.0, what is the grating constant (distance between the slits)?

A)

0.93 m
B)

1.4 m
C)

2.8 m
D)

5.6 m
E)

8.5 m

Question 2

A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0 above the horizontal. The ball leaves her hand 1.00 m above the ground. How long is the ball in flight before it hits the ground?

A)

1.22 s

B)

6.79 s

C)

7.45 s

D)

9.14 s

E)

2.44 s