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3446
A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is
  • A. \(\frac{g}{16}\)
  • B. \(\frac{g}{4}\)
  • C. \(\frac{4}{g}\)
  • D. \(\frac{16}{g}\)
View Answer & Discuss (10) JAMB 2016
3447
I.Chemical II.Sound III.Electricity

Which of the above forms of energy can directly be converted to light energy?
  • A. I and II only
  • B. II and III only
  • C. I, II and III
  • D. I and III only
View Answer & Discuss (7) JAMB 2016
3448
If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object
  • A. Is quadrupled
  • B. Is halved
  • C. Remains the same
  • D. Is double
View Answer & Discuss (28) JAMB 2016
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3449

An object is placed 15cm in front of a plane mirror. If the mirror is moved further 5cm away from the object and the image is

  • A. 80cm
  • B. 40cm
  • C. 50cm
  • D. 70cm
View Answer & Discuss (27) JAMB 2016
3450
Which of the following statements is correct about a machine?
  • A. Efficiency of a machine is always greater than I
  • B. Efficiency decreases with an increase in friction
  • C. Velocity ratio depends on friction
  • D. Mechanical advantage increases with an increase in friction
View Answer & Discuss (1) JAMB 2016
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