Question

1 Which of the following electromagnetic phenomenon wave nature is not enough to explain?
A. Photoelectric effect
B. interference
C. Diffraction
D.polarization

2 Heating a gas at constant volume will cause...
A . Increase in temperature.
B . Increase in temperature and internal energy.
C . Increase in internal energy.
D .Decrease in internal energy and increase in temperature.

Answer 1

@AllTehMaffs

Answer 2

@AllTehMaffs Can you please help me ? :)

Answer 3

hola

Answer 4

What you think #1 is?

Answer 5

:)

Answer 6

its D ..But don't know how ??? :)

Answer 7

It should be A.... hmm.

Answer 8

Polarization is absolutely a wave phenomenon... Photoelectric effect is all about the quantization of energy.

Answer 9

oka ..Wb #2 ? :)

Answer 10

What does heating a gas up do to the individual molecules?

Answer 11

increase its K.E and internal energy ..I'm sure that internal energy increased but wb temp. ??? temp. is diirectly proportional to volume ???

Answer 12

Yah. PV =nkT :)

Answer 13

The pressure will increase when you hold the volume constant is all.

Answer 14

So its ???

Answer 15

B. temp & internal energy

Answer 16

how temp ? :/

Answer 17

V is constant so temperature should be constant ?

Answer 18

The pressure will directly increase to satisfy the eq.

Answer 19

P goes up relative to T to maintain V

Answer 20

ok ...got it ..ty so much :)

Answer 21

Very welcome :)

Answer 22

my pleasure :) :)

Answer 23

keeping the incident ray fixed in direction, if the plane mirror is rotated through an angle of 15 degree,the reflected ray is rotated through an angle of
a)10 degree
b)7.5 degree
c)15 degree
d)30degree
this question is not in my syllabus so no idea 'bout it ..Can you solve it ?

Answer 24

g2g ...If u wanna solve ds than awesome ..otherwise its ok :)

Answer 25

Initial angle of incidence is b, so initial angle of reflection is also b. Total angular separation is 2b. Holding steady the incident ray, changing the angle of the plane by c makes the angle of incidence b±c and the angle of reflection b±c as well. Therefor the total angular separation is 2(b±c) = 2b ± 2c. That means the reflected ray is rotated through an angle ±2c.

answer is D