TS – Inter – 2nd Year – Physics – 2025(R ) VSAQs
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Q1. Dispersion of Light: It is a of process of separating white light into its individual colors as a function of wavelength.
Since
the refractive index of the medium (glass) for violet color is larger, violet
color disperses more than the other colors
Q2. Modulation is the
process of changing any one of the parameter (Amplitude, frequency, phase) of
the carrier wave in accordance with audio signal (message signal) amplitude.
If
no modulation is done, the height of the antenna to send the message signal
into space will be in the order of few kilo meters
The
power carried by message signals will be very less/ not sufficient to send AF
signals
Q3. Magnetic moment of the circular current carrying coil m =
Q4. It is the angle or
deviation between the actual geometrical north pole of earth and magnetic north
pole of earth magnet
Q5. The minimum amount of
energy required for the electrons to escape from the metal surface when light
incidents is called work function (
)
Q6. Primary winding
voltage V1 = 200 V
Secondary
winding voltage V2 = 2000 V
No.
Of turns in primary N1 = 10
No.
Of turns in primary N2 = ?
N1V2
= N2V1
10(2000)
= N2 (200)
N2
= 100 Turns
Q7. Unlike the electric
lines of force, magnetic force lines are closed. These are always from North
pole to South pole outside the material while inside, these lines will be from
south to north.
Magnetic
force lines are closed ones because in magnetism, mono pole does not exists.
Q8. Micro waves can
propagate
a)
in
form a narrow beam
b)
due
to high energy can propagate to longer distances
Q9. Simultaneous
measurement of conjugate quantities like position – momentum of an object is
not possible
Q10.
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