CBSE Class 10 Physics Solutions | Quick Revision Guide
Top Scoring CBSE Class 10 Physics Solutions You Need
count of the voltmeter and the reading shown by it respectively are:
a) 0.15 V and 1.6 V
b) 0.05 V and 1.6 V
c) 0.15 V and 1.8 V
d) 0.05
V and 1.8 V
3. In the following diagram
showing dispersion of white light by a glass prism, the colors 'P' and 'Q'
respectively are-
a) Red and Violet
b) Violet and Red
c) Red and Blue
d) Orange and Green
4. The magnetic field inside a long straight current carrying solenoid:
a) is zero
b) decreases as we move towards its end.
c) increases as we move towards its end.
d) is same at all points.
5. The resistance of a
resistor is reduced to half of its initial value. If other parameter of the
electrical
circuit remains unaltered, the amount of heat produced in the
resistor will become:
a) four times
b) two times
c) half
d) one fourth
6. If four identical
resistor of resistance 8 ohm, are first connected in series so as to give an
effective
resistance Rs, and then connected in parallel so as to give an
effective resistance Rp, then the ratio
Rs/Rp is -
a) 32
b) 2
c) 0.5
d) 16
Assertion-and-Reason
Type
Each question consists
of two statements, namely, Assertion (A) and Reason (R).For selecting the
correct answer, use the following code:
(a) Both Assertion (A)
and Reason (R) are the true and Reason (R) is a correct explanation of
Assertion (A).
(b) Both Assertion (A)
and Reason (R) are the true but Reason (R) is not a correct explanation of
Assertion (A).
(c) Assertion (A) is
true and Reason (R) is false.
(d) Assertion (A) is false and Reason (R) is true.
1. Assertion (A): A current carrying straight conductor experiences
a force when placed perpendicular
to the direction of magnetic field.
Reason (R): The net charge on a current carrying conductor is
always zero.
Answer: b
2. Assertion (A): Two magnetic field lines around a current
carrying straight wire do not intersect each
other.
Reason (R): The magnitude of the magnetic field produced at a
given point increases as the current
through the wire increases.
Answer: b
Reviewed by Syed Hafiz Choudhary
on
December 18, 2024
Rating:
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