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1366. A body lying at rest suddenly breaks into two parts of equal masses which start moving. The two parts will move in :
A. opposite direction with equal speed
B. same direction with equal speed
C. any direction with unequal speed
D. opposite direction with unequal speed
Explanation:
1367. Non stick cooking utensils are coated with :
A. black paint
B. PVC
C. teflon
D. Polystyrene
Explanation:
1368. Which of the following waves can propagate in a vacuum ? 1. Radio waves 2. Light waves3. X-rays 4. Ultrasonic waves Select the correct answer using the codes given below :
A. 1, 2 and 3
B. 1, 2, 3 and 4
C. 2, 3 and 4
D. 1 and 4
Explanation:
1369. Chemical change does not take place in case of
A. souring of milk into curd
B. risting of iron in atmosphere
C. burning of magnesium ribbon in air
D. emitting of light by a red hot platinum wire
Explanation:
1370. Which of the following is the lightest metal ?
A. Mercury
B. Silver
C. Lithium
D. Lead
Explanation:
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