29. Which of the following liquids freeze at a lower temperature when pressure is applied? (A)water, (B)acetic acid, (C)benzene, (D)methanol, (E)carbon tetrachloride

1. A beam of light with an intensity of 15 W is. incident on a copper plate (work function is7.43xl0-19 J). Electrons with a minimum wavelength of 3.75x10 －10 m are ejected from the surface of the copper. Calculate the frequency of the incident light. [Hint: Plank constant = 6.626 x 10－34J·s] (A)3.7lx1015Hz (B) 3.71 x 1016 Hz,(C) 3.71 x 1017 Hz,(D) 3.71 x 1018Hz(E) none of above

29. Which of the following liquids freeze at a lower temperature when pressure is applied?
(A)water,
(B)acetic acid,
(C)benzene,
(D)methanol,
(E)carbon tetrachloride

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