Scholastic Aptitude Test (SAT) Gujarat-2017 Part – 3

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Q: 26. At what distance should an object be placed to obtain its real, inverted and of same height as the object by a convex lens?

(A) At focus

(B) Between focus and centre of curvature

(C) At centre of curvature

(D) Between optical centre and focus

Q: 27. Velocity of a vehicle increase from in 5 second. What is the magnitude of acceleration?

(A)

(B)

(C)

(D)

Q: 28. What is the focal length of a convex lens having power + 5.0 D?

(A) -10cm

(B) -20cm

(C) +10cm

(D) +20cm

Q: 29. 1 Newton = ____ dyne.

(A)

(B)

(C)

(D)

Q: 30. The increase in velocity of a freely falling body in one second is :

(A)

(B) 9.8 m/s

(C) -9.8

(D) -9.8m/s

Q: 31. An object is thrown vertically upwards with velocity of 20m/s. At what height will its kinetic energy and potential energy be equal?

(A) 10m

(B) 20m

(C) 15m

(D) 5m

Q: 32. Sound corresponding to which frequency is ultrasonic sound ?

(A)

(B)

(C)

(D)

Q: 33. A cyclist travels 5km in the east direction. Then he travels 12km in the south direction. What is the magnitude of displacement of the cycle?

(A) 17km

(B) 13km

(C) 7km

(D) zero

Q: 34. How many Electrons are there in chloride ion?

(A) 17

(B) 18

(C) 16

(D) 8

Q: 35. Which Scientist gave the rule of octet?

(A) Calcium Oxide

(B) Calcium Carbonate

(C) Dalton

(D) Dobereiner

Q: 36. What is the chemical name of quick lime?

(A) Calcium Oxide

(B) Calcium Carbonate

(C) Calcium hydroxide

(D) Carbon dioxide

Q: 37. Which rays are used to diagnose cancer of esophagus?

(A) Laser

(B) Cathod

(C) X-Ray

(D) r – Ray

Q: 38. 25°C = ____ K.

(A) 273

(B) 248

(C) 298

(D) -298

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