Physics 1994 JAMB Past Questions

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Light of frequency 6.0 x 10\(^{14}\) Hz travelling in air is transmitted through glass or refractive index 1.5. Calculate the frequency of the light in the glass

A. 4.0 x 10¹⁴Hz
B. 6.0 x 10¹⁴Hz
C. 7.5 x 10¹⁴Hz
D. 9.0 x 10¹⁴Hz

View Answer & Discuss (10) JAMB 1994

An object is placed in front of a converging lens of a focal length 20cm. The image is virtual and has a magnification of 2. What is the distance of the object from the lens?

A. 5cm
B. 10cm
C. 30cm
D. 40cm

View Answer & Discuss (9) JAMB 1994

An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5.