Question Answers
Sahay Sir > Question Answers
Consider the situation shown in the figure. Two slits S1 and S2 are placed symmetrically about the line OP which is perpendicular to screen. The space between screen and slits
11
Oct
Consider the situation shown in the figure. Two slits S1 and S2 are placed symmetrically about the line OP which is perpendicular to screen. The space between screen and slits Consider the situation shown in the figure. Two slits S1 and S2 are placed symmetrically about the line OP which is perpendicular to screen. The [...]
Figure shows a Young’s double slit experiment setup. The source S of wavelength 4000 A oscillates along y-axis according to the equation y = sin pie t, where y is in millimeters and
11
Oct
Figure shows a Young’s double slit experiment setup. The source S of wavelength 4000 A oscillates along y-axis according to the equation y = sin pie t, where y is in millimeters and Figure shows a Young's double slit experiment setup. The source S of wavelength 4000 A oscillates along y-axis according to the equation [...]
White light is uses to illuminate the two slits in Young’s double-slit experiment. The separation between the slits is b and the screen is at a distance D (> b) from the slits. At a point
11
Oct
White light is uses to illuminate the two slits in Young’s double-slit experiment. The separation between the slits is b and the screen is at a distance D (> b) from the slits. At a point White light is uses to illuminate the two slits in Young's double-slit experiment. The separation between the slits is [...]
A two-slit interference experiment uses coherent light of wavelength 5 * 10^-7 m. Intensity in the interference pattern for the following points are I1, I2, I3, adn I4, respectively.
11
Oct
A two-slit interference experiment uses coherent light of wavelength 5 * 10^-7 m. Intensity in the interference pattern for the following points are I1, I2, I3, adn I4, respectively. A two-slit interference experiment uses coherent light of wavelength 5 * 10^-7 m. Intensity in the interference pattern for the following points are I1 adn I4 [...]
3. Add the following. (i) ab – bc, bc – ca, ca – ab
11
Oct
3. Add the following. (i) ab – bc, bc – ca, ca – ab 3. Add the following. (i) ab – bc bc – ca ca – ab October 11, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 ,
2. Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories? x + y, 1000, x + x^2 + x^3 + x^4 , 7 + y + 5x, 2y – 3y^2 , 2y – 3y^2 + 4y^3 , 5x – 4y + 3xy, 4z – 15z^2 , ab + bc + cd + da, pqr, p^2q + pq^2 , 2p + 2q
11
Oct
2. Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories? x + y, 1000, x + x^2 + x^3 + x^4 , 7 + y + 5x, 2y – 3y^2 , 2y – 3y^2 + 4y^3 , 5x – 4y + 3xy, 4z – 15z^2 [...]
Tags:
1000 ,
2. Classify the following polynomials as monomials ,
2p + 2q ,
2y – 3y^2 ,
2y – 3y^2 + 4y^3 ,
4z – 15z^2 ,
5x – 4y + 3xy ,
7 + y + 5x ,
ab + bc + cd + da ,
binomials ,
p^2q + pq^2 ,
pqr ,
trinomials. Which polynomials do not fit in any of these three categories? x + y ,
x + x^2 + x^3 + x^4 ,
A radio transmitting station operating at a frequency of 120 MHz has two identical antennas that radiate in phase. Antenna B is 9 m to the right of antenna A. Consider point P at a horizontal
11
Oct
A radio transmitting station operating at a frequency of 120 MHz has two identical antennas that radiate in phase. Antenna B is 9 m to the right of antenna A. Consider point P at a horizontal A radio transmitting station operating at a frequency of 120 MHz has two identical antennas that radiate in phase. [...]
12. A scooter was bought at Rs.42,000. Its value depreciated at the rate of 8% per annum. Find its value after one year.
11
Oct
12. A scooter was bought at Rs.42,000. Its value depreciated at the rate of 8% per annum. Find its value after one year. 000. Its value depreciated at the rate of 8% per annum. Find its value after one year. 12. A scooter was bought at Rs.42 October 11, 2020 Category: Chapter 7 - Cubes [...]
11. In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. Find the bacteria at the end of 2 hours if the count was initially 5,06,000.
11
Oct
11. In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. Find the bacteria at the end of 2 hours if the count was initially 5,06,000. 000. 06 11. In a laboratory the count of bacteria in a certain experiment was increasing at the rate [...]
8. Find the amount and the compound interest on Rs.10,000 for 1 1/2 years at 10% per annum, compounded half yearly. Would this interest be more than the interest he would get if it was compounded annually?
11
Oct
8. Find the amount and the compound interest on Rs.10,000 for 1 1/2 years at 10% per annum, compounded half yearly. Would this interest be more than the interest he would get if it was compounded annually? 000 for 1 1/2 years at 10% per annum 8. Find the amount and the compound interest on [...]