Describe stimulated emission

Describe stimulated emission
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1 Answer

Answer :

A photon initially produced by spontaneous emission in the  active region interacts with the laser material to produce additional  photons.
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What is lowest current at which stimulated emission exceeds spontaneous emission in a semiconductor laser called?

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Last Answer : Threshold current.

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Description : Laser light is ______ emission. a. Coherent b. Stimulated c. Spontaneous d. Coherent and stimulated

Last Answer : d. Coherent and stimulated

They wrote a paper describing how it was possible to use stimulated emission for amplifying light waves (laser) as well as microwaves (maser). ∙ A. Theodore Maiman ∙ B. KC Kao and GA Bockham ∙ C. Charles Townes and Arthur Schawlow ∙ D. Kapron, Keck and Maurer

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Last Answer : ∙ d. Coherent and stimulated

LASER stands for: a. Light Amplification by Simulated Emission of Radiation b. Light Amplification by Stimulated Emission of Radiation c. Light Amplification by Simulated Emitted Rays d. Light Amplification by Stimulated Emitted Rays

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Last Answer : Charles Townes and Arthur Schawlow

Laser is the acronym for a) Light Amplification by Stimulated Emission of Radiation b) Light Amplification by Spontaneous Emission of Radiation c) Light Amplified by Stimulated Emission of Radiation d) Light Amplification by Standard Emission of Radiation

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The emission in which the atom emits a photon of energy hf = E2 – E1 , in any arbitrary direction is a) Spontaneous emission b) stimulated emission c) induced emission d) both a & c

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Differentiate between spontaneous and stimulated emission of light with diagram.

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Description : Define: (i)Spontaneous emission. (ii)Stimulated emission.

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Description : Do you expect to be stimulated ?

Last Answer : Not very much compared to what trickles up.

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How has information and communication technology stimulated globalization process ? Explain with examples. -SST 10th

Description : How has information and communication technology stimulated globalization process ? Explain with examples. -SST 10th

Last Answer : Globalization as a process of increasing interconnectedness has changed the map of the entire world with the most efficient services that have come up in recent times. Right from the growth of ... electronic mails (email) and talk (voice mail) across the globe at considerably low costs.

How has improvement in technology stimulated the globalization process ? Explain with five examples. -SST 10th

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How have transportation technology and information and communication technology stimulated the globalisation process? -SST 10th

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Last Answer : Transportation technology : Rapid improvement in transportation technology has been one major factors that has stimulated the globalisation process. There are fast trains connecting every nook and corner of a ... a news magazine published for London readers is to be designed and printed in Delhi.

What has been the major factor that has stimulated the globalisation process? -SST 10th

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Last Answer : Rapid improvement in technology has been the major factor that has stimulated the globalisation process.

‘Rapid improvement in technology has been one major factor that has stimulated the globalisation process. Explain. [CBSE 2008(F)] Or Explain the role of technology in stimulating globalisation process. -SST 10th

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“Print not only stimulated the publication of conflicting opinions amongst communities, but it also connected communities and people in different parts of India. -SST 10th

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Last Answer : (i) Religious texts, reached a wide circle of people encouraging discussions, debates and controversies within and among different religions. (ii) Newspapers conveyed news from one place to another ... social reforms and reform movements. (vi) New ideas emerged through the clashes of opinions.

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cross-cultural research stimulated by vygotsky's theory reveals that -General Knowledge

Description : cross-cultural research stimulated by vygotsky's theory reveals that -General Knowledge

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The respiratory centre in the brain is stimulated by

Description : The respiratory centre in the brain is stimulated by

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In mammals, spermatogenesis is stimulated by

Description : In mammals, spermatogenesis is stimulated by

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Secretion of aldosterone in birds, man, and other mammals is stimulated by

Description : Secretion of aldosterone in birds, man, and other mammals is stimulated by

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Macula densa cells get stimulated by

Description : Macula densa cells get stimulated by

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What is it called when the change in cell voltage occurs when a neuron is stimulated?

Description : What is it called when the change in cell voltage occurs when a neuron is stimulated?

Last Answer : Need answer

What are 3 ways in which endocrine glands are stimulated to secrete their hormones?

Description : What are 3 ways in which endocrine glands are stimulated to secrete their hormones?

Last Answer : Need answer

How are organic systems activated or stimulated and developed through activity?

Description : How are organic systems activated or stimulated and developed through activity?

Last Answer : What is this anser

When a newborn baby, the mothers body is stimulated to produce milk. What would happen to the milk supply if the mother chose to bottle feed rather than breast-feed Why?

Description : When a newborn baby, the mothers body is stimulated to produce milk. What would happen to the milk supply if the mother chose to bottle feed rather than breast-feed Why?

Last Answer : The body would shut down milk production, and the mother would slowly stop producing milk.

The production of progesterone by corpus luteum cell is stimulated by (A) LH (B) TSH (C) ACTH (D) MSH

Description : The production of progesterone by corpus luteum cell is stimulated by (A) LH (B) TSH (C) ACTH (D) MSH

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Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG

Description : Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG

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Aldosterone release is stimulated by (A) α2-Globulin (B) Renin (C) Angiotensin II (D) Growth hormone

Description : Aldosterone release is stimulated by (A) α2-Globulin (B) Renin (C) Angiotensin II (D) Growth hormone

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Which of the following regulates lipolysis in adipocytes? (A) Activation of fatty acid synthesis mediated by CAMP (B) Glycerol phosphorylation to prevent futile esterification of fatty acids (C) Activation of triglyceride lipase as a result of hormone stimulated increases in CAMP levels (D) Activation of CAMP production by Insulin

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Hepatic liponenesis is stimulated by: (A) cAMP (B) Glucagon (C) Epinephrine (D) Insulin

Description : Hepatic liponenesis is stimulated by: (A) cAMP (B) Glucagon (C) Epinephrine (D) Insulin

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Protein anabolism is stimulated by (A) ACTH (B) Testosterone (C) Glucagon (D) Epinephrine

Description : Protein anabolism is stimulated by (A) ACTH (B) Testosterone (C) Glucagon (D) Epinephrine

Last Answer : Answer : B

Protein anabolism is stimulated by (A) ACTH (B) Testosterone (C) Glucagon (D) Epinephrine

Description : Protein anabolism is stimulated by (A) ACTH (B) Testosterone (C) Glucagon (D) Epinephrine

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The absorption of glucose in the digestive tract (A) Occurs in the small intestine (B) Is stimulated by the hormone Glucagon (C) Occurs more rapidly than the absorption of any other sugar (D) Is impaired in cases of diabetes mellitus

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Aldosterone release is stimulated by (a) Angiotensin I (b) Angiotensin (c) Angiotensin III (d) Both (b) and (c)

Description : Aldosterone release is stimulated by (a) Angiotensin I (b) Angiotensin (c) Angiotensin III (d) Both (b) and (c)

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Name important enzymes that are stimulated by Insulin.

Description : Name important enzymes that are stimulated by Insulin.

Last Answer : Phospho fructo kinase, glycogen synthase, glucose-6-phosphate dehydrogenase, acetyl CoA carboxylase.

What are the pathways stimulated by insulin?

Description : What are the pathways stimulated by insulin?

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Insulin secretion: a. is inhibited by atropine b. is increased by vagal stimulation c. is inhibited by amino acids d. is stimulated by beta agonists

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Last Answer : is increased by vagal stimulation

The following are true about the hormones secreted by the adrenal cortex: a. zona fasciculata secretes cortisol b. zona glomerulosa secretes aldosterone c. secretion of aldosterone is stimulated by ACTH d. all

Description : The following are true about the hormones secreted by the adrenal cortex: a. zona fasciculata secretes cortisol b. zona glomerulosa secretes aldosterone c. secretion of aldosterone is stimulated by ACTH d. all

Last Answer : all

True statements about aldosterone include: a. secretion is mainly under the control of adrenocorticotrophic (ACTH) hormone secretion b. increases hepatic gluconeogenesis c. its secretion is stimulated by angiotensin d. in the kidney, mainly acts on the proximal convoluted tubules

Description : True statements about aldosterone include: a. secretion is mainly under the control of adrenocorticotrophic (ACTH) hormone secretion b. increases hepatic gluconeogenesis c. its secretion is stimulated by angiotensin d. in the kidney, mainly acts on the proximal convoluted tubules

Last Answer : its secretion is stimulated by angiotensin

The following are true about aldosterone: a. it is secreted by the adrenal medulla b. its secretion is stimulated by decreased blood volume c. it stimulates active reabsorption of sodium in the distal renal tubules. d. it causes increased secretion of potassium by the distal renal tubules.

Description : The following are true about aldosterone: a. it is secreted by the adrenal medulla b. its secretion is stimulated by decreased blood volume c. it stimulates active reabsorption of sodium in the distal renal tubules. d. it causes increased secretion of potassium by the distal renal tubules.

Last Answer : it causes increased secretion of potassium by the distal renal tubules.