Statement 1: Time intervals ranging from 1/100th of a second to few seconds are measured by a simple wall clock.
Statement 2: Time at any instant is measured by a stopwatch.

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Question 2

Two clocks A and B are shown in the Figure. Clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand. Which of the following statement is correct for these clocks?

(a) Time interval of 30 seconds can be measured by clock A

(b) Time interval of 30 seconds cannot be measured by clock B

(d) Time interval of 4 minutes 10 seconds can be measured by clock A

Q. A wall clock uses a vertical spring-mass system to measure the time. Each time the mass reaches an extreme position, the clock advances by a second. The clock gives correct time at the equator. If the clock is taken to the poles it will
(a) run slow
(b) run fast
(c) stop working
(d) give correct time

Q. Q.13 A stopwatch has a circular dial divided into 120 divisions . Time interval of 10 oscillations of a simple pendulum is measured as 25 seconds by using the watch . Maximum percentage error in the time period is (1) 1 % (2) 2 % (3) 3 % (4) 4 %

Q. Solve this:
Question
If a simple pendulum completes 20 oscillations in 50 seconds, where the time is measured by a stopwatch of least count 0.2 second. Then percentage error in measurement of time period is
A. 0.8 %
B. 0.2 %
C. 1.6 %
D. 0.4 %

Q. In laboratory work, time intervals of few seconds are measured with the help of :

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Statement 1: Time intervals ranging from 1/100th of a second to few seconds are measured by a simple wall clock. Statement 2: Time at any instant is measured by a stopwatch.

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Statement 1: Time intervals ranging from 1/100th of a second to few seconds are measured by a simple wall clock.
Statement 2: Time at any instant is measured by a stopwatch.