PM SHRI KENDRIYA VIDYALAYA SITAPUR SHIFT-1
UNIT TEST-1 (2025-26)
SET: - 1 CLASS: - XI SUBJECT: - PHYSICS TIME: - 90 min. M. M. : - 40
GENERAL INSTRUCTIONS: -
1) There are 18 questions in all. All questions are compulsory.
2) This question paper has FIVE sections: Section A, Section B, Section C, Section D and
Section E.
3) Section A contains EIGHT questions of ONE mark each; Section B contains THREE
questions of TWO marks each, Section C contains FOUR questions of THREE marks
each, Section D contains ONE question of FOUR marks and Section E contains TWO
questions of FIVE marks each.
Q. NO. SECTION: - A MARKS
1. The velocity of train increases uniformly from 20 km/h to 60 km/h in 4 hours. The 1
distance travelled by the train during this period is –
(a) 160 km (b) 180 km (c) 100 km (d) 120 km
2. If a vector 2𝑖̂+ 3̂𝑗 + 8𝑘 is perpendicular to the vector −4𝑖̂ + 4𝑗̂ + 𝑚𝑘̂ , then the
̂ 1
value of m is –
(a) 1/2 (b) -1/2 (c) 1 (d) 1
3. A car moves along a straight line, whose equation of motion is given by 1
x = 12t + 3t2 – 2t3 , where x is in metres and t in seconds. The velocity of the car at
the start will be
(a) 7 m/s (b) 9m/s (c) 12 m/s (d) 16m/s
4. Identify the pair whose dimensions are equal - 1
(a) torque and work (b) stress and energy
(c) force and stress (d) force and work
5. The significant figures of the number 6.0023 are - 1
(a) 3 (b) 5 (c) 2 (d) 4
6. If percentage error in a, b, c & d is given by 2%, 4%, 1%, 3 % respectively and 1
then percentage error in Z is given by-
(a) 21% (b) 20% (c) 10% (d) 12%
ASSERTION AND REASON: -
In the following questions have two statements- one labeled Assertion (A) and the
other labeled Reason (R). Select the correct answer to these questions from the
codes (a), (b), (c) and (d) as given below
(a) Both Assertion and Reason are true and Reason is the correct explanation of
Assertion.
(b) Both Assertion and Reason are true and Reason is not the correct explanation
of Assertion.
(c) Assertion is true but Reason is false.
(d) Assertion is false but Reason is true.
7. Assertion (A): The displacement of a body may be zero, when distance travelled 1
by it is not zero.
Reason (R): The displacement is the longer distance between initial and final
points.