PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH 1) Light of wavelength 500 nm illuminates…

PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH
1) Light of wavelength 500 nm illuminates a round
0.50-mm-diameter hole. A screen is placed 6.0 m past the slit. What
is the width of the central bright circle on the screen?

a. 7.3 mm
b. 260 μm

c. 15 mm

d. 3700 μm

2) A spherical oil droplet with
nine excess electrons is held stationary in an electric field
between two large horizontal plates that are 2.25 cm apart. The
field is produced by maintaining a potential difference of 0.3375
kV across the plates, and the density of the oil is 824
kg/m3. What is the
radius of the oil drop? (e
= 1.60 × 10-19
C)
Express your answer with the appropriate
units.
R = ________
Please show your work!