Solved Numericals of Chapter 1 Physics & Measurement class 11 Sindh

[Solved] Numericals of Chapter 1 Physics & Measurement Class 11 Sindh Board

Numerical 1: 

What is the percent uncertainty in the measurement 3.67 ± 0.25 m?

Numerical 2: 

What is the area, and its approximate uncertainty, of a circle with radius 3.7 x 10⁴ cm ?

Numerical 3: 

An aero plane travels at 50 km/h. How long does it take to travel 1.00 km?

Numerical 4: 

A rectangular holding tank 25.0 m in length and 15.0 m in width is used to store water for short period of time in an industrial plant. If 2980 m³ water is pumped into the tank. What is the depth of the water? 

Numerical 5:

Find the volume of rectangular underground water tank has storage facility of 1.9 m by 1.2 m by 0.8 m? 

Numerical 6:

Two students derive following equations in which x refers to distance traveled, v the speed, the acceleration, and t the time and the subscript (o) means a quantity at time t=0:

(a) x= vt² + 2at and

(b) x = v_ot + 2at², 

which of these could possibly be correct according to dimensional check? 

Numerical 7:

One hectare is defined as 10⁴ m². One acre is 4 x 10⁴ ft². How many acres are in one hectare? (Hint: 1 m = 3.28 ft.) 

Numerical 8:

 A watch factory claims that its watches gain or lose not more than 10 seconds in a year.  How accurate is this watch, express as percentage? 

Numerical 9:

The diameter of Moon is 3480 km. What is the volume of the Moon? How many Moons would be needed to create a volume equal to that of Earth?