Revision Flashcards
(27 cards)
0
Q
Mass proton and neutron?
A
1.67x10^-27 kg
1
Q
Charge of proton and electron?
A
1.6x10^-19 C
2
Q
Mass electron?
A
9.11x10^-31
3
Q
1 ev = how many joules?
A
1.6x10 -19
4
Q
1 mega =?
A
10^6
5
Q
Specific charge?
A
Charge/mass unit:CkG^-1
6
Q
Equation energy photon?
A
E=HF
7
Q
h=?
A
6.63x10^-34 Js
8
Q
Work function?
A
=hf->thresholD frequency
9
Q
Speed of light?
A
3x10^8 ms^-1
10
Q
Power of laser beam?
A
=nHF
11
Q
Lamda =?
A
C/f
12
Q
E=?
A
Hc/wavelength
13
Q
Ekmax=?
A
Hf-workfunction
14
Q
Radio?
A
> .1 m
15
Q
Microwave?
A
.1 m- 1mm
16
Q
Infrared?
A
1 mm to 700 nm
17
Q
Visible?
A
700-400 nm
18
Q
Uv?
A
400-1 nm
19
Q
Xray and gamma?
A
Less than 1 nm
20
Q
Fmin=?
A
WorkF/h
21
Q
Higher temp in thermistor =?
A
Less resistance
22
Q
Diode?
A
.6V
23
Q
Potential diviser?
A
2 or more resistors in series
24
Lost pd in identical cells in parallel?
(I/n)*r
25
Current through each paralel identical cell?
I/n
26
Cell in series:
Current = overall net emf/total resistance
