please upload the mcq's of 2012 paper . i cant find it. and solution of mcq's paper 2013

request to very special 1 :

Can you please provide the list of topics you cover in the subject. It would aid in my preparation.

AOA

dear i left this subject in 2013 attempt, so i am not in touch with it.
i will try to attempt 2013 paper mcqs.

2012 objectives i dont have. sorry sir

the portions which i covered

vectors
relativity
sound (check past papers if light came in 2013 than do sound otherwise light portion do) mine guess
thermodynamics
paper 2
electricity
electronic
atomic

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paper 1 phy mcq,s
2013

1. confuse
2. c
3. 
4. d
5. a
6. b (may b)

i have just solved it now

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1. The square of the orbital period of a planet is:
(a) Directly proportional to the cube of the semi-major axis of its orbit.
(b) Directly proportional to the cube of the semi-minor axis of its orbit.
(c) Inversely proportional to the cube of the semi-major axis of its orbit.
(d) Inversely proportional to the cube of the semi-minor axis of its orbit.
(e) None of these


2. If the velocity of the particle becomes doubled then its K.E:
(a) Becomes doubled
(b) Reduces to half
(c) Becomes four times
(d) None of these


3. The P.E of a simple harmonic oscillator is:
(a) -½ k x²
(b) ½ k x²
(c) k x²
(d) kx
(e) None of these


4. Two car racers are 100 Km away from each other. They drive their cars at 40 Km/h and 60 Km/h respectively towards each other. After 15 minutes they will be at a distance of:

(a) 25 Km
(b) 50 Km
(c) 60 Km
(d) 75 Km
(e) None of these


5. The equation of adiabatic change is:
(a) P(V^r)= K
(b) (P^r)V = K
(c) (PV)^r= K
(d) None of these


6. By exerting a certain amount of pressure on an ice block, you:
(a) Rise its melting point
(b) Lower its melting point
(c) Make it melting at 0° C only
(d) None of these


7. Mercury thermometer can be used to measure temperature upto :
(a) 250° C
(b) 100° C
(c) 360° C
(d) 500° C
(e) None of these
(Mercury boils at 357 degree Celsius this question is very confusing as we may consider 360 to be quite near 357 )


8. Three Vectors A B and C , not in the same plane make a Parallelepiped. The volume of Parallelepiped is:

(a) (A x B) x C
(b) (A . B) x C
(c) (A x B) . C
(d) (A . B) . C
(e) None of these


9. The moment arm (r= 4m) and force (F=10N) make an angle of 30° about the turning point. The torque produced will be:

(a) 40 N.m
(b) 20 N.m
(c) 34.6 N.m
(d) None of these


10. In total internal reflection the refracted ray makes an angle of with the normal.
(a) 0°
(b) 90°
(c) 180°
(d) None of these


(confusing objective as option 0° is also quite possible . Reason: at incident ray with critical angle we get reflected ray at 0° with normal , and total internal reflection occurs when angle is greater than critical angle and reflected ray gets angle less than 90° with normal)

11. Solar eclipse occurs when:
(a) Earth is between sun and moon
(b) Sun is between moon and earth
(c) Moon is between earth and sun
(d) None of these



12. Light is dispersed into different colours when passing through a glass prism because:
(a) Refraction of light occurs in glass
(b) Refractive index of different colours is different
(c) Glass is denser than air
(d) None of these


13. A ball is thrown with a velocity of 8ˆj m/Sec . The acceleration (m/Sec^2) is 4ˆi+2ˆj
(ˆi and ˆj are unit vectors) . The displacement after 5 seconds:

(a) 52m
(b) 68m
(c) 82m
(d) None of these


14. The time period of a Second’s pendulum is 2 Sec. The mass of the Spherical bob of Second’s pendulum is 50g and is empty. If it is replaced by another solid bob of same radius but mass 100g then its time period will be:

(a) 8 Sec.
(b) 4 Sec.
(c) 1 Sec.
(d) 2 Sec.
(e) None of these

15. The equation of the displacement of a harmonic oscillator is x=3 Sinωt + 4 Cosωt (m) . The amplitude of the particle will be:

(a) 1m
(b) 5m
(c) 7m
(d) 12m
(e) None of these

16. One m³ is equivalent to:
(a) 1000 liters
(b) 100 liters
(c) 10 liters
(d) None of these


17. The frequency of Second’s pendulum is:
(a) 2 hertz
(b) 1 hertz
(c) 0.5 hertz
(d) None of these

18. The gradient of Scalar Potential is:
(a) Scalar quantity
(b) Vector quantity
(c) Neither Scalar nor Vector
(d) None of these


19. Beats are produced because of:
(a) Interference of sound waves
(b) Refraction of sound waves
(c) Diffraction of sound waves
(d) None of these


20. The sound waves are:
(a) Longitudinal
(b) Transverse
(c) Electromagnetic
(d) None of these

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