Question

Q.1) A rock weighs 2.467 kg and student measured it's weight on a
scale as 2.45 kg. Calculate a) absolute error b) relative error and c) percentage error.

Q.2) Diameter of the metal bob is measured by vernier calliper of
least count 0.1mm and is 3.86cm. Calculate percentage error in the
measurement.

Q.3) The thickness of glass plate is measured four times at different
places & the readings are 1.21cm, 1.19cm, 1.24cm and 1.22 cm.
Calculate percentage error in the measurement.

Q.4) Add 6.32, 11.252 & 0.0085 and express the result to an appropriate number of significant figures.

Q.5) Estimate the order of magnitude of surface area of the earth. ( Radius of the Earth = 6.4 x 106 m).

Q.6) Calculate the order of magnitude of one year in terms of
seconds.

Q.7) If mass of the man is measured to be 67.0+0.5 kg. Calculate the
percentage error in mass.

Q.8) Each side of cube is measured to be 7.203m. What is the volume of cube to appropriate significant figures?

PLEASE HELP!!! ITS URGENT​

Answer 1

Answer:

p-l-s bro I need some point p-l-s don't report it

What is the position of Mohit's seat ?

a) (8,3)

b) (3,8)

c) (7,4)

d) (4,7)

1

The coordinates of middle point of BC is

2

a) =

b b)

c)

d) !

15 2

(111

Dheeraj wants to sit at the coordinates:

a) (6,5)

b) (5,6)

c) (6,4)

d) (4,6)

(iv)

What is the distance between A and B ?

a) 3V2 unit b) 2v3unit

c) 2V2 unit d) 3v3 unit

(v)

What is the equation of line CD?

a) x-y-5 = 0 b) x+y -5 = 0 c) x+y+5 = 0

d) x-y+5 = 0