46 .A ray of white light strikes the surface of an object. If all the colours are reflected the surface would appear:
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Answer : Option B |
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47 .Quality of musical note depends on
Answer & Explanation
Answer : Option B |
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48 .A switch is always connected to the
Answer & Explanation
Answer : Option C |
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49 .The heating element of an electric heater should be made of a material having
Answer & Explanation
Answer : Option A |
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50 .White clothes are cooler than black ones because they
Answer & Explanation
Answer : Option B |
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51 .One astronomical unit is the average distance between:
Answer & Explanation
Answer : Option A |
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52 .What type of mixture is smoke?
Answer & Explanation
Answer : Option D |
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53 .Which among the following is symbiosis Nitrogern - fixing bacteria?
Answer & Explanation
Answer : Option C |
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54 .The freezer in a refrigerator is located at the top section so that:
Answer & Explanation
Answer : Option A |
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55 .An intrinsic semiconductor at absolute zero temperature is a
Answer & Explanation
Answer : Option C |
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56 .A one - way relationship where one species benefits at the expense of another is called _____.
Answer & Explanation
Answer : Option C |
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57 .With the increase in temperature, frequency of the sound from on organ pipe
Answer & Explanation
Answer : Option B |
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58 .The chipko Movement1. was an environmental movement toprevent cutting down of trees2. Raised the questions of ecological andeconomic exploitation3. Is a movement against alcoholism as itsbradened agenda?4. Demanded that local communitiesshould have control over their naturalresourcesSelect the correct answer using the codegiven below.
Answer & Explanation
Answer : Option B |
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59 .The main source of enrgy in Sun is:
Answer & Explanation
Answer : Option A |
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60 .The primary cell is a
Answer & Explanation
Answer : Option C |
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