Bissoy.com
Doctors Medicines MCQs Q&A

Consider the following statements in case of Young’s double slit experiment. a) A slit S is necessary if we use an ordinary extended source of light. b) A slit S is not needed if we use an ordinary but well collimated beam of light. c) A slit S is not needed if we use a spatially coherent source of light Which of the above statements are correct?

Consider the following statements in case of Young’s double slit experiment. a) A slit S is necessary if we use an ordinary extended source of light. b) A slit S is not needed if we use an ordinary but well collimated beam of light. c) A slit S is not needed if we use a spatially coherent source of light Which of the above statements are correct? Correct Answer a), b) and c)

CONCEPT: 

  • Interference: The combination of two or more electromagnetic waveforms to form a resultant wave that may have greater, lower, or the same amplitude is called interference.
  • YDSE (Young’s Double Slit Experiment): If a monochromatic light falls on two narrow slits which are very close to each other act as coherent source superpose each other and an interference pattern is observed on the screen.

[ alt="F1 P.Y Madhu 13.04.20 D 3" src="//storage.googleapis.com/tb-img/production/20/04/F1_P.Y_Madhu_13.04.20_D%203.png" style="width: 212px; height: 147px;">

  • Condition for Obtaining Clear and Broad Interference Bands
    • The screen should be far away from the source.
    • The wavelength of light used must be larger.
    • The two coherent sources should be very close.
    • Two sources of light must be of the same frequency.
    • The amplitude of interfering light waves must be the same.

EXPLANATION:​​​

  • In order to obtain the interference pattern, the light source should be coherent.
  • The coherent source can be produced in all three manners.
  • An extended source of light placed behind the slit will produce light of different wavelengths. The slit will convert it to coherent light.

  • A well-collimated beam of light has a constant frequency and wavelength and therefore, it is used as a coherent source.

  • If the source is itself coherent, then no slit is required for the interference of light.

  • So, option (1),(2)and(3) are correct.

  • So the correct answer is option 1.

Related Questions

Consider the following statements with regards to the shear force diagram for the beam ABCD: 1. The beam ABCD is an overhanging beam having supports at A and D only. 2. The beam carries a point load of 20 kN at C. 3. The beam carries a concentrated load of 10 kN at the end B. 4. The beam is an overhanging beam having supports at C and D only. 5. The beam carries a uniformly distributed load of 70 kN over the left hand portion AC only. Which of the above statements are correct?
Consider the following statements regarding types of supports and beams: 1. When both supports of beams are roller supports, the beam is known as simply supported beam. 2. A beam with one end fixed and the other end free is known as fixed beam. 3. A beam with both ends fixed is known as cantilever beam. 4. A beam with one end fixed and the other simply supported is known as propped cantilever. Which of the above statements is/are correct ?
In Young’s double slit experiment the source is white light. One slit is covered with red filter and the other with blue filter. There shall be
In Young's double slit experiment, a third slit is made in between the double slits. Then
What will happen if the monochromatic source of light is replaced by a white light in Young's double slit experiment
The following are the conditions for selecting list of a suitable candidates to be called for interview after the written test for the recruitment is conducted/organized for management - level persons for a multi - national company. For providing accounting services and sales the candidate must (a) be holding a graduation in basic science with 65% or above or B.E. degree with 55% and above marks (b) have passed the written test with 70% or above marks (c) the age must be in the group 25 to 30 years as on 1/4/18 (d) have experience in an accounting firms for three years and diploma in accounting with 60% or above marks (e)  be presently drawing CTC of 6 Lakhs per annum and above In case the applicant who satisfies all other terms above except 1) at (a) above, then be referred as Junior Accountant 2) at (d) & (e) above then be referred as Trainee - Accountant Satisfying all the above with experience of 5 years then the referred as senior-Accountant Satisfying all the above criteria (a - e) with CA/ICWA/MBA (Finance) then be referred as manager (Accounts) Read all the above information and answer the following question Praveen has done his Masters in physics. He has no experience in accounting neither diploma. He is ready to be on training for accounting after joining. For which position he may be referred
The following are the conditions for selecting a list of suitable candidates to be called for interview after the written test for the recruitment is conducted/ organized for management-level persons for a multi-national company. For providing accounting services and sales the candidate must (a) beholding graduation in basic science with 65% or above or B.E. degree with 55% and above marks (b) have passed the written test with 70% or above marks (c) the age must be in the group 25 to 30 years as on 1/4/18 (d) have experience in an accounting firm for three years and a diploma in accounting with 60% or above marks e) be presently drawing CTC 6 lakhs per annum and above In case the applicant who satisfies all other terms above except 1) at (a) above, then be referred to as Junior Accountant 2) at (d) & (e) above then be referred to as Trainee-Accountant Satisfying all the above with experience of 5 years then be referred to as senior-Accountant Satisfying all the above criteria (a-e) with CA/ICWA/MBA (Finance) then be referred to as manager (Accounts) Read all the above information and answer the following question   Praveen has done his Masters in physics. He has no experience in accounting neither diploma. He is ready to be on training for accounting after joining. For which position he may be referred.
The following are the conditions for selecting list of a suitable candidates to be called for interview after the written test for the recruitment is conducted/ organized for management-level persons of a multi-national company. For providing accounting services and sales the candidates must (a) be holding a graduation in basic science with 65% or above or B. E degree with 55% and above marks (b) have passed the written test with 70% or above marks (c) the age must be in the group 25 to 30 years as on 1/4/18 (d) have experience in an accounting firms for three years and diploma in accounting with 60% or above marks (e) be presently drawing CTC of 6 Lakhs per annum and above In case the applicant who satisfies all other terms above except 1) at (a) above, then be referred as Junior Accountant 2) at (d) & (e) above then be referred as Trainee-Accountant Satisfying all the above with experience of 5 years then be referred as senior-Accountant Satisfying all the above criteria (a-e) with CA/ ICWA / MBA (Finance) then be refereed as manager (Accounts) Read all the above information and answer the following question Shravani has passed H. SC with 72% of marks. She has done diploma in accountancy with 62% of marks. She was working with an organization in the field of accounting in the field of accounting from 4 years and was drawing CTC of 6.5 Lakhs presently. She is 28yrs as on July 2018. She may referred for the position of:
The following are the conditions for selecting list of a suitable candidates to be called for interview after the written test for the recruitment is conducted/ organized for management-level persons of a multi-national company. For providing accounting services and sales the candidate must (a) be holding a graduation in basic science with 65% or above or B.E degree with 55% and above marks (b) have passed the written test with 70% or above marks (c) the age must be in the group 25 to 30 yrs as on 1/4/18 (d) have experience in an accounting firms for three yrs and diploma in accounting with 60% or above marks (e) be presently drawing CTC of 6 Lakhs per annum and above In case the applicant who satisfies all other terms above except 1) at (a) above, then be referred as Junior Accountant 2) at (d) & (e) above then be referred as Trainee-Accountant Satisfying all the above with experience of 5 yrs then be referred as senior-Accountant Satisfying all the above criteria (a-e) with CA/ ICWA/ MBA (Finance) then be refereed as manager (Accounts) Read all the above information and answer the following question: Radha Mohan has done her graduation in physics with 58% of marks. She has passed the written examination with 76% of marks. She is 27 yrs as on June 2018. She has the experience in the accounting company for four years with salary of 7 Lakhs per annum. She also has passed diploma in accounting with 61% of marks. She may be referred for the position of:
Tanushree is a dancer. Dancers are young ladies. Which is the correct conclusion? Conclusions: a) All young ladies are dancers. b) All dancers are young ladies. c) Tanushree is not young and hence not a dancer. d) Tanushree is young lady dancer.