Ecat past papers, Mcat past papers

1. One light year is equal to
9.46x1014 m
9.51x1014m
9.68x1014m
9.61x10-11m

2. If a body moves 10 m in north then 15 m in East after that it moves 20 m upward. What will be its distance from origin?
25 m
26.92 m
30 m
20m

3. If a body moving with constant acceleration covers x m in 1st second and y m in next four seconds then what will be the relation between x and y?
y = 8x
x = y
y = 16x
y = 4 x

4. If a bullet is fired at angle of 30° with velocity of 196 m/s, for how much time it remains in the air?
10 s
20 s
30 s
40 s

5. Which of the following friction is the self-adjusting force?
Static
limiting
dynamic
sliding

6. A man holding 60 N weight moves 7 m horizontally and then 5 m in vertical. Find the work done by man. 300 j
720 j
270 j
120 j

7. The work done by retarding force will
Positive
negative
neutral
none

8. If the momentum of a body increased by 50% then its K.E. will increases
50%
100%
125%
none

9. A disc, a ring and a sphere have same masses and radius, whose momentum of inertia will be maximum? Disc
ring
sphere
none

10. If the radius of the earth is reduced by half keep the mass same then how much time will it take to complete one rotation?
24 hr
48 hr
12 hr
6 hr

11. The maximum velocity that an object can achieve in a fluid is called ……….velocity.
Initial
terminal
average
final

12. The shock absorber of a car are the application of
SHM
damped oscillation
stoke’s Law
Pascal’s Law

13. The waves formed by forward and the reflected wave are called…………..wave.
Progressive
stationary
longitudinal
transverse

14. The near point of the human eye is
2 m
infinity
25 cm
zero

15. A body absorbs heat at constant temperature, and then what will be the phenomena?
Melting
evaporation
boiling
both b and c

16. If 10 C charge passes through a conductor of resistance 20ı in 2 s then find the potential
difference across the conductor.
400 V
200 V
100 V
10V

17. When an electron enters a magnetic field perpendicularly then its path of motion will be
Circle
parabola
ellipse
hyperbola

18. If r is the perpendicular distance of point from a current carrying conductor of infinite length
then the relation between B and r will be
B α r2
B α r
B α 1/r2
B α 1/r

19. If a galvanometer of resistance 95 is converted to ammeter of shunt resistance 5 . What will
be the percentage of current through the shunt resistance?
20%
30%
12%
24%

20. If V is the voltage of galvanometer of resistance G, then what will be its resistance when the
voltage across it is nV?
(n-1)G
nG
G/n

21. Average value of AC over a cycle is
Io
Io/2
zero
Io/underroot 2

22. Choke is used in AC circuits to
Increase current
decrease current
both
remain same

23. The material with resistivity 104 is
Conductor
insulator
semiconductor
none

24. In which type of material current flows due to the breakage of covalent bonds?
Donor
acceptor
extrinsic
intrinsic

25. For a transistor
IC = IB + IE
IE = IB + IC
IB = IE + IC
IE = IB

26. For which logic gate output is 1 when A = 1 and B = 1.
OR
NOT
XNOR
both OR and XNOR

27. Proton is made up of how many quarks?
2 up, 1 down
1 up, 2 down
1 up, 1 down
 none

28………………is emitted in radioactivity.
Electrons
neutrons
electromagnetic ray
alpha particles

29. The time of an event is 1.98 s in inertial frame of reference. What its period measured by an observer moving at a speed of 0.95 c relative to the event.
2 s
2.01 s
1.96 s
1.94 s

MCAT & ECAT PREPARATION TIPS

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