In this article we will be uploading the ** PHY 191** Past Question Paper and the possible solution, if the solutions are not yet complete please contact us on whatsapp.

## PHY 191

#### QUESTION NUMBER 11

The standard error in the slope of a graph is 3.0 while its range and number of readings are 0.62 and 6 respectively. The verticle width scatter is ?

A. **2.79**

B. 2.88

C. 1.8

D. 10.8

ANSWER: A

#### QUESTION NUMBER 12

The number of significant figures in 4.07 x 10^15m is

A. 1

B. **3**

C. 14

D. 15

ANSWER: B

#### QUESTION NUMBER 13

A small bob of mass 20g oscilliates as a simple pendulum with amplititude 5cm and a period of 2sec, find the fvelocity of bob when the velocity is maximum

A. 0.05m/s

B. 3.14m/s**C. 0.16m/s**

D. 0.001m/s

ANSWER: C

#### QUESTION NUMBER 14

A vapour whose molecules are in dynamic equillibrium with those of its liquids is said to be**A. Saturated**

B. Unsaturated

C. Gaesous

D. Diffused

ANSWER: A

#### QUESTION NUMBER 15

The instrument used in measuring relative density is**A. Hygrometer**

B. Hydrometer

C. Thermometer

D. Barometer

ANSWER: A

#### QUESTION NUMBER 16

if a simple pendulum performing SHM swings to maximum apllititude, its kinetic energy is**A. zero**

B. maximum

C. twice its potential

D. equal to its potential

ANSWER: A

#### QUESTION NUMBER 17

in an experiment, the vernier calliper was used to measure the breath to be 2.40cm and the thickness to be 0.45cm of the meter rule. find the volume of the meter rule?

A. 125.0cm

B. 105.0cm**C. 108.0cm**

D. 109.0cm

ANSWER: C

#### QUESTION NUMBER 18

supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants ….. transform the above equations to form y=mx+c**A. 1/i = 1/E R + r/E**B. r/E

C. r/R

D. IE

ANSWER: A

#### QUESTION NUMBER 19

supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants— what is the equivalent of y?**A. 1/I**

B. R

C. r/E

D. 1/E

ANSWER: A

#### QUESTION NUMBER 20

supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants— what is the equivalent of x

A. 1/I

B. r/E**C. R**

D. 1/E

ANSWER: C

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