In this blog physics classes by Nayan jha providing objective questions and answers , which contain multiple choice , assertion reason and case study based questions with explanation( complete solution.
To download the pdf all questions and its answer click here-
For question numbers 86-100, two statements are given-one labelled Assertion (A) and the other labelled Reason (R).
Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false and R is also false
- Assertion (A) : Long distance transmission
of A.C. is carried out at extremely high voltage.
Reason (R): For large distance, voltage has
to be large…. - Assertion (A) : An electric lamp connected
in series with a variable capacitor and A.C.
source, its brightness increases with increase
in capacitance.
Reason (R): Capacitive reactance decreases
with increase in capacitance of capacitor. - Assertion (A) : A transformer cannot work
on D.C. supply.
Reason (R): D.C. changes neither in magnitude
nor in direction. - Assertion (A) : Step-down transformer
increases the current.
Reason (R): Transformer obeys the law of
conservation of energy.
To download complete assignment of these questions and answer (PDF)click here-