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Class - IX
Time : 35 minutes. Marks. 35
1. Where from was democritus ?
a) India b) Italy
c) Greece d) Egypt
2. In which year Ibn-E-Eunus died ?
a) 0995 b) 1009
c) 1005 d) 1109
3. How many Joules equal one giga Joule ?
a) 109 Joule b) 1012 Joule
106 Joule d) 10-9 Joule.
4. What is the mass of a body if weight of the body 9.81 Newton ?
a) 98.1 kg b) 9.81 kg
c) 981 kg d) 1 kg
5. Where is the acceleration due to gravity maximum ?
a) Equatorial region b) Polar region
c) On top of a mountain
d) Centre of the earth.
6. How many watts equal one Hours Power.
a) 764 watt b) 750 watt
c) 756 watt d) 746 watt
7. The man of a man is 70 kg and he runs at a vetocity of 6 ms-1. What is his kinetic energy.
a) 4900 J b) 2460 J
c) 2520 J d) 1260 J
8. What is the specific gravity of Ice ?
a) 1.oo b) o.917
c) o.971 d) 1.o10
9. Find out the lowest specific gravity ?
a) Kerosene oil b) Turpentine oil
c) Alum d) Glycerin
10. What is the minimum time stable in Brain, when you hear a sound ?
a) o.o1 sec b) o.10 sec
c) o.20 sec d) o.o2 sec
11. Find out the speed of sound in water ?
a) 332 m s-1 b) 1520 ms -1
c) 1450 ms -1 d) 1550 ms-1
12. How much c.c of ice 1000 c.c of water will be converted into at ooc ?
a) 100 c.c b) 108 c.c
c) 109 c.c d) 110 c.c
13. At what temperature water will boil at the tap of Everest ?
a) 1ooo c b) 900 c
c) 800 c d) 700 c
14. Find out the thermal conductivity of Iron ?
a) 80 wm -1 k -1 b) 81 wm -1 k -1
c) 79 w m -1 k -1 d) 78 wm -1 k -1
15. Find out the highest thermal conductivity below
a) Aluminium b) Iron
c) Copper d) Tin
16. Which machine is compressor connected with ?
a) petrol engine b) Diesel engine
c) Steam energy d) Refrigerator.
17. Which energy is extracted out with the help of pump in Refrigerator ?
a) Mechanical energy b) Electric energy
c) Sound energy d) Chemical energy
18. How many times is the wave length of gamma ray smaller than wave length of visible light
a) 10,000 times b) 20,000 times
c) 40,000 times d) 50,000 times
19. What is unit of illumination ?
a) Steredian b) Candela
c) Lumen d) Luse.
20. What is the type of image formed by a plane mirror ?
a) Real b) Inverted
c) Magnified d) Virtual.
21. How many times is the focol length of radius of curvature for a spherical mirror ?
a) One-third b) Twice
c) Equal d) Half.
22. How much proton is there is there inhuman body
a) more than 1028 b) less than 1028
c) more than 1024 d) less than 1024
23. Who invented the Gold leaf Electroscope ?
a) Coulomb b) Ohm
c) Benet d) Volta.
25. Which one is not magnetic substance ?
a) Iron b) Steel
c) Cobalt d) Aluminium.
26. What is thechemical formula of magnet ?
a) Feo b) Fe2 o3
c) Fe3 o4 d) Fe2 o4
27. Which type ofmay net is widely used in Tape-recorder and in the memory tape of a computer.
a) Alloy magnet b) Ceramic magnet
c) A linco d) Solfmagnet.
28. In ferro-magnetic substance how does the magnetic dipole exist.
a) Separately enist b) Enist together
c) Exists for mingdomains
d) Exists haphazardly.
29. Fromwhose book has the name "A lgebra" Briginated.
a) Al-Ballani b) ptolemy
c) Al-Khwarizmi d) Al-Fazari.
30. What is the specific gravity of mercury ?
a) 13.6 b) 13.7
c) 13.8 d) 13.7
31. Which one is the unit of electric current ?
a) Volt b) Ampere
c) Watt d) Foul
32. Which ingtrument can be used to measure the diameter of a cylinder ?
a) Meter scale b) Vernier scale
c) Slide calipers d) Yerd struck
33. Which relation is correct ?
a) A1 = F2 b) F2 = A2.
A2 A2 F1 A1
c) F1 = A2 d) A12 = F1 2
F2 A1
34. Which is the dimension of energy ?
a) MLT-1 b) MLT - 2
c) ML2 T - 2 d) ML2 T -1
35. Which is the unit of pressure ?
a) Newton b) Joule
c) Wall d) Pascal.
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