26. What Changes Will Happen To A Bowl Of Ice And Water Kept At Exactly Zero Degree Celsius ?
⚪All Water Will Become Ice
⚪No Change Will Happen
⚪Only Some Ice Will Melt
⚪0°C
⚪ 0°F
⚪ 4°F
⚪Real And Inverted
⚪Virtual And Erect
⚪Virtual And Inverted
29. What Is The Minimum Escape Velocity Of Rocket To Be Launched Into Space?
⚪6 Km Sec.
⚪11 Km. Sec.
⚪5 Km Sec.
30. Pycnometer Is An Instrument Used To Measure The
⚪Density
⚪Intensity Of Earthquake
⚪High Temperatures
31. A Passenger Standing In A Bus Is Thrown Outward When The Bus Takes A Sudden Turn Happens Due To
⚪Inertia Of Motion
⚪Change In Acceleration
⚪Outward Pull On Him
32. Tape Recorder Should Not Be Kept Near One Of The Following Things:
⚪Magnet
⚪Electrical Switchboard
⚪Radio
33. Cryogenics Is A Science Dealing With
⚪Low Temperatures
⚪Friction And Wear
⚪High Temperatures
34. The Type Of Mirrors Used In The Headlamp Of Cars Is
⚪Parabolic Concave
⚪Spherical Convex
⚪Cylindrical Concave
35. While Catching A Ball A Player Pulls Down His Hands To Lower The
⚪Impulse
⚪Catching Time
⚪Force
⚪Lactometer
⚪Hygrometer
⚪Barometer
37. The Time Period Of A Pendulum When Taken To The Moon Would
⚪Become Zero
⚪Increase
⚪Remain The Same
38. When A Ship Enters The Sea From A River
⚪It Sinks A Little
⚪It Remains At The Same Level
⚪It Rises Or Sinks Depending On The Material It Is Made Of
39. Holography Is A Technique Of
⚪Recording A Permanent Three Dimensional Black And White Photograph
⚪Recording A Permanent Three Dimensional Photograph Of A Given Single Colour Or A Multicolor
⚪Recording A Permanent Sharp Two Dimensional Black And White Or Multicolor Photograph
40. A Transformer Works On The Principle Of
⚪Generator
⚪Mutual Induction
⚪Self Induction
41. A Dynamo Is A Device Which
⚪Converts Electrical Energy Into Mechanical Energy
⚪Converts Mechanical Energy Into Electrical Energy
⚪ Creates Mechanical Energy
42. When A Bottle Of Scent Is Kept Open In A Comer Of A Room Its Odour Is Felt In All Parts Of The Room. This Is Due To The Phenomenon Of:
⚪ Vaporization
⚪Diffusion
⚪Sublimation
43. Angle Of Friction And Angle Of Repose Are
⚪Not Equal To Each Other
⚪Proportional To Each Other
⚪None Of The Above
44. Water Boils At A Lower Temperature On The Hills Because
⚪There Is Less Carbon Dioxide On The Hills
⚪There Is A Decrease In Air Pressure On The Hills
⚪It Is Cold On The Hills
45. Longitudinal Waves Cannot Travel Through
⚪Gas
⚪Vacuum
⚪Liquid
46. Which Combination Of Colour Is The Most Convenient During Day And Night Time ?
⚪White And Black
⚪Yellow And Blue
⚪Red And Green
47. Dynamo Is A Device For Converting
⚪Magnetic Energy Into Electrical Energy
⚪Heat Energy Into Electrical Energy
⚪Chemical Energy Into Electrical Energy
48. The Sensation Of Weightlessness In A Spacecraft In An Orbit Is Due To The
⚪Presence Of Gravity Outside But Not Inside The Spacecraft
⚪Acceleration In The Orbit Which Is Equal To The Acceleration Due To Gravity Outside
⚪Absence Of Gravity Outside
49. The Dimension Of Which Of The Following Is The Same As That Of Impulse?
⚪Momentum
⚪Change In The Rate Of Momentum
⚪Volume
50. Which Of The Following Liquids Has The Least Density ?
⚪Salt Water
⚪Mercury
⚪Petrol
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