Question Answers

4.Express the number appearing in the following statements in standard form: (i) The Earth has 1,353,000,000 cubic km of sea water. 000 cubic km of sea water. 000. 353 4.Express the number appearing in the following statements in standard form: (i) The Earth has 1 October 10, 2020 Category: Chapter 13 - Exponents and Powers [...]

Consider the optical system shown in figure. The point source of light S is having wavelength equal to lemda. The light is reaching screen only after reflection. For point P to be Consider the optical system shown in figure. The point source of light S is having wavelength equal to lemda. The light is reaching [...]

4.Express the number appearing in the following statements in standard form: (h) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm. 000 molecules are contained in a drop of water weighing 1.8 gm. 000. 230 4.Express the number appearing in the following statements in standard form: (h) 60 October 10, 2020 Category: [...]

In YDSE, coherent monochromatic light having wavelength 600 nm falls on the slits. First-order bright fringe is at 4.84 mm from central maxima. Determine the wavelength for which coherent monochromatic light having wavelength 600 nm falls on the slits. First-order bright fringe is at 4.84 mm from central maxima. Determine the wavelength for which In [...]

4.Express the number appearing in the following statements in standard form: (g) The distance of the Sun from the centre of the Milky Way Galaxy is estimated to be 300,000,000,000,000,000,000 m. 000 m. 000. 4.Express the number appearing in the following statements in standard form: (g) The distance of the Sun from the centre of [...]

4.Express the number appearing in the following statements in standard form: (f) The universe is estimated to be about 12,000,000,000 years old. 000 years old. 000. 4.Express the number appearing in the following statements in standard form: (f) The universe is estimated to be about 12 October 10, 2020 Category: Chapter 13 - Exponents and [...]

In figure, if a parallel beam of white light is incident on the plane of the slits, then the distance of the nearest white spot on the screen from O is if a parallel beam of white light is incident on the plane of the slits In figure then the distance of the nearest white [...]

4.Express the number appearing in the following statements in standard form: (e) In a galaxy there are on an average 100,000,000,0000 stars. 000. 0000 stars. 4.Express the number appearing in the following statements in standard form: (e) In a galaxy there are on an average 100 October 10, 2020 Category: Chapter 13 - Exponents and [...]

4.Express the number appearing in the following statements in standard form: (d) Diameter of the Sun is 1,400,000,000 m. 000 m. 000. 4.Express the number appearing in the following statements in standard form: (d) Diameter of the Sun is 1 400 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT [...]

4.Express the number appearing in the following statements in standard form: (c) Diameter of Earth id 1,27,56,000 m. 000 m. 27 ........ 4.Express the number appearing in the following statements in standard form: (c) Diameter of Earth id 1 56 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class [...]