Exam Details
| Subject | Physics | |
| Paper | ||
| Exam / Course | Diploma in Civil Engineering (DCLE) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
1. Choose the correct answer.
The S.I unit of coefficient of viscosity is
Ns/m^2
Nsm^2
Nm^2
The equation of continuity for a compressible fluid is given as
pav =constant
av =constant
pa =constant
pv =constant
Refractive index of a medium can be given as 1/sqrt(2) and the angle of refraction is 45°. Calculate the value of sin
where i is the angle of incidence.
1/4
1/2
1/8
1/10
Sound travels fastest
on a cold winter day
on a rainy day
on a hot day
on a slightly warm day
Two wires carrying current in same direction
repel each other
attract each other
have no attraction or repulsion
merge into each other
Kinetic friction is usually than static friction.
more
same
less
not related
The numerical value which is the same on Celsius and Fahrenheit scales is
-20
-80
-40
0
Explain in brief the stress -strain curve for a ductile material.
A copper cube of mass 0·5 kg is weighed in water. The mass of the cube is found to be 0·40 kg. Is the cube hollow or solid? Take the densities of water and copper as 10^3 kg/m^3 and 8·96 x 10^3 kg/m^3 respectively.
Derive the Bernoulli's equation for an incompressible fluid.
Explain in brief the three modes of heat transfer.
State the 1st and 2nd law of thermodynamics.
A copper calorimeter weighing 250 g is at a temperature of 20°C. When 50 g of water at 30°C is poured into the calorimeter cup, the temperature of the cup water system becomes 26·8°C. Calculate the specific heat capacity of the cup.
Define intensity of sound. What are the two major factors on which the intensity of sound depends? Also show how intensity is related with these factors.
What is quality of sound How do we determine it
What are the factors affecting the speed of sound in a gaseous medium?
Explain in detail the laws of refraction with suitable diagrams. Also define refractive index and give its expression.
Explain Total internal reflection with suitable examples.
Calculate the electric force between two charged spheres having charges 4 x C and 6x10^-7 C and placed 60 cm apart in air.
Calculate the resistance of the following circuit:
<img src='./qimages/13158-6b.jpg'>
Explain in detail Kirchhoff's First and Second Rules.
7. Write short notes on any four of the following:
Galvanometer
Wheatstone Bridge
Astronomical Telescope
Potentiometer
Ferromagnetic Substance
Ohm's Law
The S.I unit of coefficient of viscosity is
Ns/m^2
Nsm^2
Nm^2
The equation of continuity for a compressible fluid is given as
pav =constant
av =constant
pa =constant
pv =constant
Refractive index of a medium can be given as 1/sqrt(2) and the angle of refraction is 45°. Calculate the value of sin
where i is the angle of incidence.
1/4
1/2
1/8
1/10
Sound travels fastest
on a cold winter day
on a rainy day
on a hot day
on a slightly warm day
Two wires carrying current in same direction
repel each other
attract each other
have no attraction or repulsion
merge into each other
Kinetic friction is usually than static friction.
more
same
less
not related
The numerical value which is the same on Celsius and Fahrenheit scales is
-20
-80
-40
0
Explain in brief the stress -strain curve for a ductile material.
A copper cube of mass 0·5 kg is weighed in water. The mass of the cube is found to be 0·40 kg. Is the cube hollow or solid? Take the densities of water and copper as 10^3 kg/m^3 and 8·96 x 10^3 kg/m^3 respectively.
Derive the Bernoulli's equation for an incompressible fluid.
Explain in brief the three modes of heat transfer.
State the 1st and 2nd law of thermodynamics.
A copper calorimeter weighing 250 g is at a temperature of 20°C. When 50 g of water at 30°C is poured into the calorimeter cup, the temperature of the cup water system becomes 26·8°C. Calculate the specific heat capacity of the cup.
Define intensity of sound. What are the two major factors on which the intensity of sound depends? Also show how intensity is related with these factors.
What is quality of sound How do we determine it
What are the factors affecting the speed of sound in a gaseous medium?
Explain in detail the laws of refraction with suitable diagrams. Also define refractive index and give its expression.
Explain Total internal reflection with suitable examples.
Calculate the electric force between two charged spheres having charges 4 x C and 6x10^-7 C and placed 60 cm apart in air.
Calculate the resistance of the following circuit:
<img src='./qimages/13158-6b.jpg'>
Explain in detail Kirchhoff's First and Second Rules.
7. Write short notes on any four of the following:
Galvanometer
Wheatstone Bridge
Astronomical Telescope
Potentiometer
Ferromagnetic Substance
Ohm's Law
Other Question Papers
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