Two slits are illuminated by a 568 nm light. the angle between the zeroth-order bright band at the center of the screen and the fourth-order bright band is 17.6 ◦ . if the screen is 176 cm from the double-slit, how far apart is this bright band from the central peak? answer in cm. answer in units of cm.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

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