Physics

4ms^-1

10ms^-1

20ms^-1

50ms^-1

80ms^-1

2 x 10^-8m

2 x 10^-9m

2 x 10^-7m

3 x 10^-9m

2.8 x 10^-8m

9.33cm

10.00cm

10.66cm

12.00cm

15.00cm

i only

ii only

iii only

i and ii only

ii and iii only

bulb is large and thick-walled

stem is long and thin

bulb is small and thicked-walled

liquid is of high density and the bore is large

bulb is thin-walled and the liquid is a good conductor of heat