Question

Aakash
Medica EE Foundations
Code-G5)
R circuit is connected to an ac
ce. When Lis removed from the
hase difference between current
TT
If instead C is removed from
3
TT
e phase difference is again
3
nt and voltage. The power factor
141. For which one of the following, Bohr model is
not valid ?
(1) Singly ionised helium atom (He*)
(2) Deuteron atom
113) Singly ionised neon atom (Net)
(4) Hydrogen atom
Answer (3)
142. Light with an average flux of 20 Wicm2 falls on
a non-reflecting surface at normal incidence
having surface area 20 cm2. The energy
received by the surface during time span of
1 minute is :
(2) 1.0
(4) zero
L, area of cross section A is
xed support. The length of the
L, when mass M is suspended
. The expression for Young's
MgL
(2) ALT
(1) 12 x 103 J
(2) 24 x 103 J
(3) 48 103 J
(4) 10 × 103 J
Answer (2)
143. An electron is accelerated from rest through a
potential difference of V volt. If the
de Broglie wavelength of the electron is
1.227 10-2 nm, the potential difference is :
(1) 102 v
(2) 103 v
(3) 104 V
(4) 10 V
(4)
MgL1
AL​

Answer 1

Answer:

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