Comment with a brief explanation whether the following statements are true or false: 1. The wavelength...

Comment with a brief explanation whether the following statements are true or false:

1. The wavelength of an electron moving with a velocity of 1.1*10^6 m/s is 6.6 nm.

2. In photoelectric effect, whether an electron will be ejected by light is determined not by the intensity of light but by the wavelength.

3. The temperature of a star can be determined using its radiation spectrum.

4. Resistance-temperature-detector is based on resistivity of a metal decreasing with temperature.

Expert Solution

genius_generous answered 8 months ago

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