Bissoy.com
Doctors Medicines MCQs Q&A

Standing waves can be produced when two identical waves, having a phase difference of π, are travelling in the same direction. True or False?

Standing waves can be produced when two identical waves, having a phase difference of π, are travelling in the same direction. True or False? Correct Answer False

The equation of standing waves is given by; y = Asin(kx)cos(wt). This is formed by adding two waves of the form asin(kx-wt) & bsin(kx+wt) which shows that they both must be travelling in opposite directions.

Related Questions

In an NCC parade of a school, seven students P, Q, R, S, T, U, and V are standing in a row. V is standing between P and T. One student is standing between U and P. There are two students standing between R and T who is standing at the left of P. S is standing at the immediate right of U. There are three students between R and Q. Who is standing third from the left end of the row?
Below problem consists of four statements. Based on the first two statements, the third and fourth statements may be true or false. If the first two statements are true, then choose the correct option from the given alternatives for remaining statements. 1. In a queue, A is standing behind D who is standing behind Q. 2. B is standing behind A but ahead of S. 3. Only two persons are standing behind B. 4. A is standing between B and S.
Eight robots – J, K, L, M, N, O, P and Q are standing around a circular tree facing outside. K is fifth to the right of Q which is standing opposite to N. there is K standing between N and M. M is standing opposite to L which is standing to the immediate right of J. O is standing third to the right of N. Which of the following statement is true?
Seven people P, Q, R, S, T, U and V are standing in a queue. The number of people standing in front of P and V is same as the number of people standing behind R and S respectively. Three people are standing between Q and U. Q is standing behind P, but ahead of T. Who is standing at the rear end of the queue?
Five people are standing in a row. Aman is standing next to Karan who is not adjacent to Tanuj. Radhika is standing next to Priyanka who is standing on the extreme left and Tanuj is not standing next to Radhika. Who is Standing adjacent to Aman?
Five students are standing in a line. Suman is standing next to Pranav but not next to Deena. Kumar is standing next to Raju, who is standing on the extreme left, and Deena is not standing next to Kumar. Who is standing in the middle?
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?
দুটি সুসঙ্গত উৎস থেকে λ দৈর্ঘ্যের দুটি তরঙ্গ সমদশায় বের হয় । একটি বিন্দুতে যেখানে তরঙ্গ দুটি মিলিত হয় সেখানে তাদের দশা পার্থক্য 90° । তরঙ্গ দুটির অতিক্রান্ত পথ পার্থক্য তখন কত ? ( Two coherent sources emit waves of wavelength λ which are in phase. which are in phase. The two waves meet at a point where they have a phase difference of 90°. Which of the following could be the traversed path difference between the waves?)
Six doctors E, G, I, K, M and O are standing in a row facing towards north (Not necessarily in the same order). M is standing to the immediate right of E. K is standing second to the right of O. Two doctors are standing between I and M. K is towards the left of G. Who is standing to the immediate right of K?