Important Multiple Choice Questions of physics || Class 11 ||
1. A particle moves along a straight-line y= 3x + 5. Which coordinate changes at faster rate? a) X- coordinate b) y-coordinate c) both x and y d) insufficient data Ans: b) y-coordinate ( Let suppose x=1,then y=8 ,x= 2 ,y = 11. So y coordinate is increasing 3 times faster as compare to X- coordinate ) . 2. If š“ā + šµāā = š¶ā and A+B = C then the angle between š“ā and šµāā is- a) 0 b) Ļ/4 c) Ļ/2 d) Ļ Ans: c) Ļ/2 3. If a unit vector is represented by 0.5šā 0.8š+ c k then the value of ācā is- a) 1 b) ā0.11 c) ā0.01 d) ā0.39 Ans: b) ā0.11 4. Given that A = B. what is the angle between (š“ā + šµāā) and (š“ā ā šµāāāāāāāā) =? a) 30Ā° b) 60Ā° c) 90Ā° d) 180Ā° Ans: d) 180Ā° 5. What is the component of the (3i+4j) along (i + j)? a) Ā½ (i + j) b) 3/2(i + j) c) 5/2 (i + j) d) 7/2 (i + j) Ans: d) 7/2 (i + j) 6. What is the value of (š“ā + šµāā).( š“ā Ć šµāā)? a) 0 b) AĀ²-BĀ² c) AĀ²+BĀ²+2AB d) None of these Ans...
Comments
Post a Comment