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# (Solved): QUESTION 24 An object is placed 11.0cm in front of a converging lens with a focal length of 19.1cm. ...

QUESTION 24 An object is placed

11.0cm

in front of a converging lens with a focal length of

19.1cm

. Use calculation to find the location (in

cm

) of the image. Normal format with

3SF

. QUESTION 25 In Young's double-slit interference experiment, it is found that the third dark fringe is at the angle of

19.5@

. If the separation between the double slits is

1.0\times 10^(-3)mm

, find the wavelength (in

m

) of the light source. Exponential format with

3SF

. QUESTION 26 In Young's double-slit interference experiment, it is found that the second bright fringe is at the angle of 14.10 . If the separation between the double slits is

1.50\times 10^(-3)mm

, find the wavelength (in

m

) of the light source. Exponential format with

3SF

.

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