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In a YDSE with two identical slits, when the upper slit is covered with a thin, perfectly transparent sheet of mica, the intensity at the centre of screen reduces to 75% of the initial value.
10
Oct
In a YDSE with two identical slits, when the upper slit is covered with a thin, perfectly transparent sheet of mica, the intensity at the centre of screen reduces to 75% of the initial value. In a YDSE with two identical slits perfectly transparent sheet of mica the intensity at the centre of screen reduces [...]
3.Express each of the following numbers using exponential notation: (i) 512
10
Oct
3.Express each of the following numbers using exponential notation: (i) 512 3.Express each of the following numbers using exponential notation: (i) 512 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
A hydraulic press contains 0.25 m^3( 250L ) of oil. Find the decrease in volume of the oil wen it is subjected to a pressure increase △p=1.6×107Pa. The bulk modulus of the oil is B = 5.0 × 10^9 Pa.
10
Oct
A hydraulic press contains 0.25 m^3( 250L ) of oil. Find the decrease in volume of the oil wen it is subjected to a pressure increase △p=1.6×107Pa. The bulk modulus of the oil is B = 5.0 × 10^9 Pa. A hydraulic press contains 0.25 m^3( 250L ) of oil. Find the decrease in volume [...]
Suppose that one of the slits in Young’s experiment is wider than the other, so the amplitude of the light reaching the central part of the screen form one slit, acting alone, is twice
10
Oct
Suppose that one of the slits in Young’s experiment is wider than the other, so the amplitude of the light reaching the central part of the screen form one slit, acting alone, is twice acting alone is twice so the amplitude of the light reaching the central part of the screen form one slit Suppose [...]
2.Express the following in exponential form: (iv) 5 x 5 x 7 x 7 x 7 (v) 2×2×a×a (vi) a × a × a × c × c × c × c × d
10
Oct
2.Express the following in exponential form: (iv) 5 x 5 x 7 x 7 x 7 (v) 2×2×a×a (vi) a × a × a × c × c × c × c × d 2.Express the following in exponential form: (iv) 5 x 5 x 7 x 7 x 7 (v) 2×2×a×a (vi) a × [...]
The compressibility of water 5 × 10 ^10 m ^ 2 N^-1 . The decrease in volume of 100 ml of water when subjected to a pressure of 15 MPa:
10
Oct
The compressibility of water 5 × 10 ^10 m ^ 2 N^-1 . The decrease in volume of 100 ml of water when subjected to a pressure of 15 MPa: The compressibility of water 5 × 10 ^10 m ^ 2 N^-1 . The decrease in volume of 100 ml of water when subjected to [...]
The width of one of the two slits in Young’s double slit experiment is double of the other slit. Assuming that the amplitude of the light coming from a slit is proportional to the
10
Oct
The width of one of the two slits in Young’s double slit experiment is double of the other slit. Assuming that the amplitude of the light coming from a slit is proportional to the The width of one of the two slits in Young's double slit experiment is double of the other slit. Assuming that [...]
2.Express the following in exponential form: (i) 6 x 6 x 6 x 6 (ii) t × t (iii) b × b × b × b
10
Oct
2.Express the following in exponential form: (i) 6 x 6 x 6 x 6 (ii) t × t (iii) b × b × b × b 2.Express the following in exponential form: (i) 6 x 6 x 6 x 6 (ii) t × t (iii) b × b × b × b October 10, 2020 [...]
1.Find the value of: (iii)11^2 (iv) 5^4
10
Oct
1.Find the value of: (iii)11^2 (iv) 5^4 1.Find the value of: (iii)11^2 (iv) 5^4 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
The intensity of the light coming from one of the slits in Young’s double slit experiment is double the intensity from the other slit. Find the ratio of the maximum intensity to the
10
Oct
The intensity of the light coming from one of the slits in Young’s double slit experiment is double the intensity from the other slit. Find the ratio of the maximum intensity to the The intensity of the light coming from one of the slits in Young's double slit experiment is double the intensity from the [...]