What is the radian measure between the arms of watch at 5:00 pm?
a
1 radian
b
2 radian
c
3 radian
d
4 radian
2
1° =
a
0.01745 radian
b
1 radian
c
3.14 radian
d
2π radian
3
The metric prefix for 0.000001 is
a
hecto
b
micro
c
deca
d
nano
4
Which of the following is the CORRECT way of writing units?
a
71 Newton
b
12 mμ s
c
8 Kg
d
43 kg m⁻³
5
A student measures a distance several times. The readings lie between 49.8 cm and 50.2 cm. This measurement is best recorded as
a
(49.8 ± 0.2) cm
b
(49.8 ± 0.4) cm
c
(50.0 ± 0.2) cm
d
(50.0 ± 0.4) cm
6
The percent uncertainty in the measurement of (3.76 ± 0.25) m is
a
0.04
b
0.066
c
0.25
d
3.76
7
The temperatures of two bodies measured by a thermometer are t₁ = (20 ± 0.5) °C and t₂ = (50 ± 0.5) °C. The temperature difference and the error therein is
a
(30 ± 0.0) °C
b
(30 ± 0.5) °C
c
(30 ± 1) °C
d
(30 ± 1.5) °C
8
(5.0 m ± 4.0%) × (3.0 s ± 3.3%) =
a
15.0 ms ± 13.2%
b
15.0 ms ± 7.3%
c
15.0 ms ± 0.7%
d
15.0 ms ± 15.3%
9
(2.0 m ± 2.0%)³ =
a
8.0 m³ ± 1.0%
b
8.0 m³ ± 2.0%
c
8.0 m³ ± 5.0%
d
8.0 m³ ± 6.0%
10
The number of significant figures in measurement of 0.00708600 cm are
a
3
b
4
c
6
d
9
11
How many significant figures does 1.362 + 25.2 have?
a
2
b
3
c
5
d
8
12
Compute the result to correct number of significant digits 1.513 m + 27.3 m =
a
29 m
b
28.8 m
c
28.81 m
d
28.813 m
13
If 7.635 and 4.81 are two significant numbers. Their multiplication in significant digits is:
a
36.72435
b
36.724
c
36.72
d
36.7
14
The true value of an object length is 29.35 m. The student measure the length in three trials to be 29.47 m, 28.96 m and 29.25 m. The students data is
a
accurate but not precise
b
both accurate and precise
c
precise but not accurate
d
neither accurate and nor precise
15
[M⁰L⁰T⁰] are dimension of
a
strain
b
refractive index
c
magnification
d
All of these
16
The dimensions of torque are
a
[MLT]
b
[M²L⁻²T]
c
[ML²T⁻²]
d
[ML²T⁻²]
17
The percent uncertainty in the measurement of (3.76 ± 0.25) m is
