What is the wavelength of the most intense light emitted by a giant star of surface temperature 5000 K? The constant in Wien's law is 0.00290 m ? K
A) 582 nm B) 580 nm C) 576 nm D) 578 nm
B
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An ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim. What happens to the level of water in the glass as a result of the ice melting?
a. It goes up, overflowing. b. It stays the same. c. It goes down. d. It depends on air pressure, thus the answer is indeterminate.
When we consider how frequently an oscillating system vibrates we're talking about
A) frequency. B) period. C) wavelength. D) amplitude.
Wavelengths just shorter than visible light are classified as
A. gamma rays. B. x-rays. C. microwaves. D. ultraviolet. E. radio waves.
The most widely accepted system of measurement is the metric system
a. True b. False Indicate whether the statement is true or false