The threshold of hearing is a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 ...

Author Question: The threshold of hearing is a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 ... (Read 169 times)

melina_rosy

Hero Member
Posts: 531

on: Jul 28, 2018

The threshold of hearing is
a. 0 dB.
b. 140 dB.
c. 40 dB.
d. 110 dB.
e. 1 dB.

Question 2

An electron in a hydrogen atom makes a transition from the n = 4 to the n = 3 energy state. Determine the energy (in eV) of the emitted photon.
a. 0.54
b. 0.66
c. 0.85
d. 1.51
e. 10.2

carojassy25

Sr. Member
Posts: 299

Reply #1 on: Jul 28, 2018

Answer to Question 1

a

Answer to Question 2

b

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.