A 2 Ω resistance is connected to a 4Ω resistance in series. Their equivalent resistance will be?
A4/3 Ω
B3/4 Ω
C6 Ω
D1 Ω
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A beam of white light undergoes dispersion through a triangular glass prism forming a band of seven colours. Which of the statements is/are correct?
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- (c) All components of white light have same speed in glass.
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