1.For an ideal gas in constant volume if you double the temperature ( T₂= 2 T₁)_, what is the new pressure ( P₂=?)

	a	P2 = 1/2 P1
	b	P2 = 1/4 P1
	c	P2 = 2 P1
	d	P2 = 4 P1

2. What is the speed of light ( km/s) in a medium with refractive index n = 1.3?

Assume the speed of light in vacuum = 300000km/s and round your final answer in two decimal places. and do not add units.

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