Solve
Guides
Join / Login
Use app
Login
0
You visited us
0
times! Enjoying our articles?
Unlock Full Access!
Standard XII
Physics
Work Function
Question
The ratio of work function and temperature of two emitters are 1 : 2, then the ratio of current densities obtained by them will be
4
:
1
2
:
1
1
:
4
1
:
2
A
1
:
4
B
4
:
1
C
1
:
2
D
2
:
1
Open in App
Solution
Verified by Toppr
J
1
J
2
=
A
T
2
1
e
−
W
1
/
k
T
1
A
T
2
2
e
−
W
2
/
k
T
2
Was this answer helpful?
1
Similar Questions
Q1
The ratio of work function and temperature of two emitters are 1 : 2, then the ratio of current densities obtained by them will be
View Solution
Q2
The diameters of two planets are in ratio
4
:
1
. Their mean densities have ratio
1
:
2
. The ratio of
‘
g
′
on the planets will be
View Solution
Q3
Densities of two gases are in the ratio
1
:
2
and their temperature are in the ratio
2
:
1
, then the ratio of their respective pressure is :
View Solution
Q4
The diameters of two planets are in ratio
4
:
1
. Their mean densities have ratio
1
:
2
. The ratio of '
g
' on the planets will be:
View Solution
Q5
Densities of two gases are in the ratio
1
:
2
and their temperatures are in the ratio
2
:
1
then the ratio of their respective pressures is:
View Solution