The Cold Light of Fireflies Fireflies are often said to give off "cold light." Part A Given that the peak in a firefly's radiation occurs at about 5.4 x 1014 Hz, determine the temperature of a blackbody that would have the same peak frequency. Express your answer using two significant figures. ΜΕ ΑΣΦ 0 ? T = Submit Request A power. K

(a) For what temperature is the peak of blackbody radiation spectrum at 400 nm? (b) If the temperature of a blackbody is 800 K, at what wavelength does it radiate the most energy?

(a) What is the wavelength of a 1.00-eV photon? (b) Find its frequency in hertz. (c) Identify the type of EM radiation.

A tungesten filament is heated to 2600.0 ∘C. Calculate the wavelength for which the emission spectrum of the filament is maximum assuming that it fully absorbes light at all wavelengths. Choose: a.λmax=1009 b.λmax=1115 c.λmax=1137 d.λmax=1087

The blackbody radiation emitted from a furnace peaks at a wavelength of 6.0 x 10-6 m (0.0000060 m). What is the temperature inside the furnace? K Need Help? Read It

Question A7 The intensity of the emitted radiation by a star is at a maximum at a wavelength of 78.9 nm. a) Calculate the surface temperature of the star. b) Calculate the ratio of the intensity radiated at 65.0 nm to the maximum intensity. Assume that the star radiates like an ideal blackbody.

The blackbody radiation emitted from a furnace peak at a wavelength of 5.0  10-6 m (0.0000050 m). What is the temperature inside the furnace? K

What is the wavelength (in m) of a 2.06 eV photon? Find its frequency in hertz.

docs.google.com a Q.4 A- Define a blackbody, discuses experimental data for the distribution of energy in blackbody radiation at three temperatures. B- A surveyor uses a steel measuring tape that is exactly 15.000 m long at a temperature of 30°C. The markings on the tape are calibrated for this temperature. (a) What is the length of the tape when the temperature is 35°C? (b) When it is 45°C, the surveyor uses the tape to measure a distance. The value that she reads off the tape is 40.794 m. What is the actual distance?

A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ = 169.8 nm. ▼ Part A What is the atom's final speed if it now emits an identical photon in a direction that is perpendicular to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. .0 Value Submit ΜΑ Part B Units Request Answer μA What is the atom's final speed if it now emits an identical photon in a direction that is opposite to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. ? Q Search P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | ט 7:22 12/11/2