please check the attached image, i have given this answer b4
Answer:
D
Explanation:
wavelength = speed of light/ frequency
= (3 x 10^8 m/s) / (3 x 10^12 Hz)
= 1 x 10^-4 m
735.33 grams
mass = density × volume
= 12.7 × 57.9
= 735.33 grams