The surface of the neutron star RXJ2015 has a temperature of 10 million K. This neutron star emits radiation most strongly in
A) x-ray light.
B) visible light.
C) radio light.
D) infrared light.
A) x-ray light.
You might also like to view...
According to the solar nebula theory, dust grains, whatever their composition, grew from microscopic size first by condensation, then by accretion
Indicate whether the statement is true or false
A combination of a 2.0-? resistor in series with 4.0-? resistor is connected in parallel with a 3.0-? resistor. What is the equivalent resistance of this system?
A) 2.0 ? B) 3.0 ? C) 4.0 ? D) 9.0 ?
A copper cable needs to carry a current of 200 A with a power loss of only 1.5 W/m. What is the required radius of the copper cable? (The resistivity of copper is 1.7 × 10^-8 W×m.)
a. 4.0 cm c. 0.85 cm b. 0.21 cm d. 1.2 cm
Starting from rest, an electron accelerates through a potential difference of 67 V. What is its de Broglie wavelength? (h = 6.63 × 10^-34 J×s, me = 9.11 × 10^-31 kg, and 1 eV = 1.60 × 10^-19 J)
a. 1.1 × 10^-10 m c. 1.9 × 10^-10 m b. 1.5 × 10^-10 m d. 2.3 × 10^-10 m