31. ”Rose petals” turn blue in:
(A) Acidic Solution
(B) Neutral Solution
(C) Salty solution
(D) Alkaline solution
answer
(D) Alkaline solution
32. ”25 Milligrams” is equal to:
(A) 0.25 g
(B) 0.025 g
(C) 0.0025 g
D) 0.00025 g
answer
(B) 0.025 g
33. Which of the following is a ”derived quantity”?
(A) m2
(B) m
(C) S
(D) Kg
answer
(A) m2
34. ‘I kg of water occupies’ volume of:
(A) 10dm3
(B) Im3
(C) 1dm3
(D) 100 cm3
answer
(C) 1dm3
35. ”1 Kg” is equal, to:
(A) 100g
(B) 1000g
(C) 1/100g
(D) 1/100g
answer
(B) 1000g
36. Which ”material will expand” on, heating?
(A) Solids
(B) Liquids
(C) Gasses
(D) All of these
37. At which ”temperature, volume” of water, is maximum:?
(A) 4C
(B)-100Cc
(C) OC
(D) 110C
answer
(C) OC
38. ”Heat is transferred” through: ?
(A) Conduction
(B) Radiation
(C) Convection
(D) all of these
answer
(D) all of these
39. The image formed by a ”concave lens” is always:
(A) Virtual
(B) Real
(C) Inverted
(D) larger
answer
(A) Virtual
40. ”Telescope” was first, time, invented?
(A) England
(B) America
(C) Russia
(D) Netherland
answer
(D) Netherland
