Physics 2nd Half Syllabus Test

Quiz
•
Physics
•
11th - 12th Grade
•
Hard
Physics seconds
Used 4+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A parallel plate condenser has uniform electric field E(V/m) in the space between the plates. if the distance between the plates is d(m) and area of each plate is A(m2) the energy (joules) stored in the condenser is.
E2Ad / ε0
ε0EAd
½ (ε0 E2)
½ ( ε0 E2 Ad)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When hydrogen atom is in its first excited level its radius is.
Four times its ground state radius
Same
Twice
Three times
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.4 eV
10.2 eV
12.1 eV
13.6 eV
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Energy of electron in a orbit of H-atom is
Positive
Negative
Zero
Nothing can be said
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X-rays of λ=1A° have frequency
3×108Hz
3×1018Hz
3×1010Hz
3×1015Hz
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How is the potential within and on the surface of a conductor?
Indirectly proportional
Directly proportional
Zero
Constant
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows the electric field lines in a region of space containing two small
charged spheres (Y and Z). Then
Y is negative and Z is positive
The magnitude of the electric field is the same everywhere
The electric field is strongest midway between Y and Z
The electric field is not zero anywhere (except infinitely far from the spheres)
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