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A monochromatic beam of light falls on YDSE apparatus at some angle (say theta) as shown in figure. A thin sheet of glass is inserted in front of the lower slit S2. The central bright fringe
10
Oct
A monochromatic beam of light falls on YDSE apparatus at some angle (say theta) as shown in figure. A thin sheet of glass is inserted in front of the lower slit S2. The central bright fringe A monochromatic beam of light falls on YDSE apparatus at some angle (say theta) as shown in figure. A [...]
4.Express each of the following as a product of prime factors only in exponential form: (iv) 768
10
Oct
4.Express each of the following as a product of prime factors only in exponential form: (iv) 768 4.Express each of the following as a product of prime factors only in exponential form: (iv) 768 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
4.Express each of the following as a product of prime factors only in exponential form: (iii) 729 x 64
10
Oct
4.Express each of the following as a product of prime factors only in exponential form: (iii) 729 x 64 4.Express each of the following as a product of prime factors only in exponential form: (iii) 729 x 64 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
In Young’s double-slit experiment, the y-coordinates of central maxima and 10th maxima are 2 cm and 5 cm, respectively. When the YDSE apparatus is immersed in a liquid of refractive
10
Oct
In Young’s double-slit experiment, the y-coordinates of central maxima and 10th maxima are 2 cm and 5 cm, respectively. When the YDSE apparatus is immersed in a liquid of refractive In Young's double slit experiment respectively. When the YDSE apparatus is immersed in a liquid of refractive the y-coordinates of central maxima and 10th maxima [...]
4.Express each of the following as a product of prime factors only in exponential form: (ii) 270
10
Oct
4.Express each of the following as a product of prime factors only in exponential form: (ii) 270 4.Express each of the following as a product of prime factors only in exponential form: (ii) 270 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
In Young’s double-slit experiment, the two slits act as coherent sources of equal amplitude A and of wavelength lemda. In another experiment with the same setup, the two slits are sources
10
Oct
In Young’s double-slit experiment, the two slits act as coherent sources of equal amplitude A and of wavelength lemda. In another experiment with the same setup, the two slits are sources In Young's double slit experiment the two slits act as coherent sources of equal amplitude A and of wavelength lemda. In another experiment with [...]
4.Express each of the following as a product of prime factors only in exponential form: (i) 108 x 192
10
Oct
4.Express each of the following as a product of prime factors only in exponential form: (i) 108 x 192 4.Express each of the following as a product of prime factors only in exponential form: (i) 108 x 192 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
Two light waves having the same wavelength lemda in vacuum are in phase initially. Then the first ray travels a path of length L1 through a medium of refractive index mu 1. The second ray
10
Oct
Two light waves having the same wavelength lemda in vacuum are in phase initially. Then the first ray travels a path of length L1 through a medium of refractive index mu 1. The second ray Two light waves having the same wavelength lemda in vacuum are in phase initially. Then the first ray travels a [...]
3.Say true or false and justify your answer: (iv) 3^0 = (1000)^0
10
Oct
3.Say true or false and justify your answer: (iv) 3^0 = (1000)^0 3.Say true or false and justify your answer: (iv) 3^0 = (1000)^0 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
2^3 * 3^2 = 6^5
10
Oct
2^3 * 3^2 = 6^5 2^3 * 3^2 = 6^5 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,