Question

Exer
3.
(D) Work
(B) 1/2%
(D) None of the above.
(B) Mass
(B) Acceleration
(D) Pressure
Choose the correct option.
[L'M'T) is the dimensional formula for
(A) Velocity (B) Acceleration
The error in the measurement of the
sides of a rectangle is 1%. The error in
Dimensions of kinetic energy are the
1.
(e) Force
the measurement of its area is
(A) 1%
(C) 2%
iii) Light year is a unit of
(A) Time
(C) Distance (D) Luminosity
iv)
same as that of
(A) Force
(C) Work
Which of the following is not a
fundamental unit?
(A) cm (B) kg
(C) centigrade (D) volt
2.
Answer the following questions.
Star A is farther than star B. Which star
will have a large parallax angle?
What are the dimensions of the quantity
g. I being the length and g the
acceleration due to gravity?
fil) Define absolute error, mean absolute
error, relative error and percentage error.
iv) Describe what is meant by significant
figures and order of magnitude.
If the measured values of two quantities
are A + AA and B + AB, AA and AB
being the mean absolute errors. What is
the maximum possible error in A + B?
Show that if
А
Z=
B
AZ_AA AB
+
Z A B
vi) Derive the formula for kinetic
energy
of
a particle having mass m and velocity v
using dimensional analysis
=​

Answer 1

Answer:

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