Physics Intermediate 2025

BALOCHISTAN

TIME: 3 HOURS

GROUP-1

BOARD OF INTERMEDIATE & SECONDARY EDUCATION, QUETTA

INTERMEDIATE | ANNUALI EXAMINATION, 2025.

MARKS: 85

SUBJECT: PHYSICS - A

PASS MARKS: 34

NOTE: ATTEMPT ALL PARTS:

PART - I

Q.1

(a)

Choose the correct answer.

(i)

(it)

The frequency of 10Hz has time period

The distance between node of anticode is --

(iii)

The length covered by fsve body is 3 sec is -

(iv)

The dot product of (-31) and(-/) is

(V)

The power of roator at 8952 J/Jsrc is

(vI)

ML T is the dimension of

(vii)

2m radian in rarcos of degree is

(vili) The equation of continuity bv =

(ix)

Jouls per Kelvin in the unit of --

(b)

Fill in the blanks.

The significant figure in 0.2.20 is --

The product of force and time is

（m）

The relation for absolute P.E is

(iv)

In Isolated system, the energy is

(v)

The speed of sound at 200°C is

(vi)

The frequency is reciprocal of

(vii)

The SI unit of torque is --

(9)

(0.1 sec, 0.5 sec, 1 sec, 5 sec)

（40.1m, 44.1m,19.1m,9.8m）

（3,3,0,1）

(7hp, 6hp, 5hp, 4hp)

(Power, Force, Work, Current)

(90, 180, 270, 260)

(Constant, Veriable, Both, none)

(Velocity, Energy, Entropy, Temp:)

(7)

PART - II

Q.2 Attempt any fourteen (14) parts. Answer should be three to four lines.

(14×3=42)

(i)

What is impulse?

(il) Describe excensinty.

(III) Describe heat engine.

(iv)

Why standing wave cannet transfer energy. (v)

Define teats.

(vi) What is diffirection of light?

(vil) Define conventional energy.

(vill)

Describe resonance.

(ix)

Why rain drops do not bost?

(s)

Write causes of random error.

(xi) State I" condition of equilibrium.

(xil) Distinguish between mass and weight.

(vill) Is gravisstional field conservative?

(slv) Write properties of vector addition.

(VV)

Define S.H.M. *

(svi) How can an antifisial gravity achived?

(vvil) What is centripetal consirvative?

(xviil) State sperties of continuity.

PART - III

Q.3

Q.4

Q.5

Q.6

Q.7

Note: Attempt any three (3) question.

Explain dot product with two propecton.

State and explain adiabatic, equation.

Derive formula for absolute potential energy.

State and derive Bernoulli's equation.

Explain the effect of pressure and density on speed of round.

PART - IV

(6×3=18)

0.8

Q.9

Q.10

Q.11

Q.12

Note: Attempt any three (3) question.

Find cross product of (4i + 5j) and 6i + 7)).

Find the momentum of 3kg at 30cm/sec.

Calculate the time period of simple pendulum 0.8m.

Calculate banking of 300m diameter at 11.4m/s.

Verify that F = Gm2/r2 is dimensionally correct.

(THE END)

(3×3=9)