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Which of the following pairs of light rays shows the widest separation in the spectrum of white light?

by Sunday | Sep 1 | Physics WAEC

A. Yellow and red B. Orange and green C. Violet and blue D. Blue and green E. Red and indigo Correct Answer: Option E – Red and indigo
A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

by Sunday | Sep 1 | Physics WAEC

A. 10m B. 20m C. 30m D. 40m E. 60m Correct Answer: Option C – 30m
A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

A parallel beam of light is to be obtained from the headlamp ofa car. At which of the following positions should the source of light be placed from the pole of its spherical minor?

by Sunday | Sep 1 | Physics WAEC

A. At the focal point B. At the centre of curvature C. Beyond the centre of curvature D. Between the focal point and the pole E. Between the focal point and the center of curvature Correct Answer: Option A – At the focal...
A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

A concave mirror of radius of curvature 20cm has a pin placed at 15cm from its pole. What will be the magnification of the image formed?

by Sunday | Sep 1 | Physics WAEC

A. 4.00 B. 2.00 C. 1.33 D. 1.50 E. 0.25 Correct Answer: Option B – 2.00 Explanation 1/U + 1/V = 1/f f = r/2 = 10cm; 1/15 + 1/v = 1/10 v = 30 = m = v/u = 2
A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

A stone is dropped into the middle of a pool of water. Which of the following statements is/are correct?

by Sunday | Sep 1 | Physics WAEC

I. Spherical waves are set up in the water. II. The water moves outwards to the sides of the pool. III. Energy is transmitted outwards from the centre of disturbance A. I only B. II only C. III only D. I and III only E. II and III only. Correct Answer: Option D...
A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m. How far is the object from the lens?

Which of the following is/are necessary for the production of interference with two wave trains?

by Sunday | Sep 1 | Physics WAEC

I. The sources must be close to each other. II The waves must have the same frequency. III. The waves must have the same amplitude. IV. The waves must travel with the speed of light. A. I, II and IV only B. I, II and III only C. I and II only D. II, III and IV only E....
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