Verification of Malus law | Third Year Practical Physics

Verification of law of malus 

Sample reading

Determination of P

Angle of incidence	Photo electric current	Photo electric current	P
(θ)	(Imax)	(Imin)	(Imax - Imin) / (Imax + Imin)
0	219	360
10	272	67
20	278	72
30	256	28
40	271	30
50	330	21
60	337	44

Determination of 123

Position of Nicol prism (β)	Observed value of current (µA)
0	243
10	194
20	176
30	164
40	219
50	232
60	220
70	146
80	122
90	190
100	125
110	243
120	202
130	220
140	265
150	226
160	226
170	216
180	274
190	268
200	252
210	260
220	250
230	236
240	206
250	162
260	124
270	105
280	98
290	110
300	250
310	187
320	264
330	250
340	273
350	224
360	225

Note:

• Above readings are only for reference, students should perform the practical in their laboratory and get their own readings.
• Students can also note voltage in place of current as an intensity.

Object 4 Inverting and non-inverting Operational amplifier

https://cutt.ly/gkarhFk