www.eenadupratibha.net
www.eenadupratibha.net
www.eenadupratibha.net
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong><br />
INTERMEDIATE PUBLIC EXAMINATION<br />
Jr. . PHYSICS MODEL PAPER (ENGLISH(<br />
VERSION)<br />
TIME: 3 HOURS MAX. MARKS: 60<br />
SECTION - A<br />
Note: 1) Answer ALL questions.<br />
2) Each question carries TWO marks.<br />
3) All are Very short answer type questions. 10 × 2 = 20<br />
1. What are fundamental forces in nature?<br />
2. Express unified atomic mass unit in Kg.<br />
3. State sign of work done by a force in the following (a) Work done by a man in<br />
lifting the bucket out of well by means of rope tied to the<br />
bucket. (b) Work done by gravitational force in the above case.<br />
4. Is it necessary that a mass should present at centre of mass of any<br />
system?<br />
5. A copper wire of 1 mm diameter is stretched by applying a force of 10 N. Find the<br />
stress in the wire.<br />
6. State the unit and dimension of universal Gravitational constant (G).<br />
7. What are lower and upper fixed points in celsius and Fahrenheit scales?<br />
8. Give an expression for excess pressure in a liquid bubble in air.<br />
9. Define thermal equilibrium. How does it lead to zeroth law of thermodynamics?<br />
10. Define mean free path.<br />
SECTION - B<br />
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong><br />
Note: 1) All are Short answer type questions.<br />
2) Answer any SIX questions.<br />
3) Each question carries FOUR marks. 6 × 4 = 24<br />
11. Show that maximum height and range of projectiles are u 2 sin 2 θ/2g and u 2 sin2θ/g<br />
respectively, where terms have their usual meaning.<br />
12. A car travels the first one third of a distance with a speed of 10 kmph. The second<br />
third at 20 kmph and last third at 60 kmph. What is its mean speed over the entire<br />
distance?<br />
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong>
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong><br />
13. Show that incase of elastic collision relative velocity of approach of two colliding<br />
bodies before collision is equal to the relative velocity of separation after collision.<br />
14. Why are shock absorbers used in motor cycles.<br />
15. Define vector product. Explain properties of vector product with two examples.<br />
16. What is geostationary satellite? Write its uses.<br />
17. What is Reynold's number? What is its significance?<br />
18. Derive the relation between the two specific heat capacities of gas on the basis of<br />
first law of thermodynamics.<br />
SECTION - C<br />
Note: 1) All are Long answer type questions.<br />
2) Answer any TWO questions.<br />
3) Each question carries EIGHT marks. 2 × 8 = 16<br />
19. (a) Develop the notations of work and KE. Show that it leads to work energy<br />
theorem.<br />
(b) A bullet of mass 25 gm moving with a velocity of 500 m/s enters into a<br />
wooden block and comes out of it with a velocity of 100 m/s. Find the work<br />
done by bullet passing through the wooden block.<br />
20. Show that motion of simple pendulum is simple harmonic and hence derive an<br />
equation for its time period. What is seconds pendulum?<br />
21. State Boyle's law and Charles' Law. Hence derive ideal gas equation. Which of the<br />
two laws is better for the purpose of thermometry and why?<br />
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong><br />
<strong>www</strong>.<strong>eenadupratibha</strong>.<strong>net</strong><br />
Reg - MP - 13
Change language