pmt pq's Flashcards
1
Q
if a star emits lots of EM waves including UV + x rays
Why is uv and xray detected simultaneously
A
Because they travel at same speed = speed of light
2
Q
what is the refractive index of glass
A
1.5
3
Q
In which region of the EM spectrum is radiation of frequency 300 MHz
A
radio waves
4
Q
equation for critical angle
A
sin c = n1/n2
n1/n2 has to be <1 because max trig function is 1
5
Q
equation for refractive index, smaller equation, non snell
A
n = speed of light in vacumn/speed in material
6
Q
Which EM wave highest energy range
A
gamma rays
