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• Give the names of quantum numbers. The four quantum numbers are principal quantum number (n), azimuthal or subsidiary quantum number (l), magnetic quantum number (m_l), and el... Structure of Atom 1 answer
• State Heisenberg uncertainty principle. Heisenberg's uncertainty principle states that “It is impossible to determine simultaneously, the exact position and exact momentum (or velo... Structure of Atom 1 answer
• Name the element that shows simplest emission spectrum. Hydrogen shows the simplest emmission spectrum Structure of Atom 2 answers
• If an element ‘X’ has mass number 11 and it has 6 neutrons, then write its representation. The representation of the given element is ¹¹₅X Structure of Atom 1 answer
• 4. Match the following : Element No. of Neutron a. ⁴⁰₁₈AR iv. 22 b. ¹⁴₆C iii. 8 c. ⁴⁰₁₉K ii. 21 d. ¹⁴₇N i. 7 Structure of Atom 1 answer
• Complete the following information about the isotopes in the chart given below : Substance Mass Number Number of Protons Neutrons Electrons Carbon-14 14 6 8 6 Lead-208 208 82 126 82 Chlorine-35 35 17 18 17 Uranium-238 238... Structure of Atom 1 answer
• Make the pairs: neutrons six electrons Answer:: ‘A’ ‘B’ a. Neutrons iv. Chadwick b. p-orbital i. six electrons c. charge on electron ii. -1.6×10⁻¹⁹ C d. Lyman series iii. Ultravio... Structure of Atom 1 answer
• Principal Quantum number describes a. shape of orbital b) size of the orbital Structure of Atom 2 answers
• “No two electrons in the same atoms can have identical set of four quantum numbers”. This statement is known as - a. Pauli’s exclusion principle Structure of Atom 2 answers
• p-orbitals are....... in shape. a. spherical b. dumb bell c. double dumbell d. diagonal b. dumb bell Structure of Atom 2 answers
• The value of Plank’s constant is - A) 6.626 × 10⁻³⁴Js Structure of Atom 2 answers
• The energy difference between the shells goes on ........... when moved away from the nucleus. b) decreasing Structure of Atom 2 answers
• [Science 2]SSC Science Question Paper 2020 - Part 2 - March - English Medium - Std 10th Maharashtra Board [Science 2]SSC Science Question Paper 2020 - Part 2 - March - English Medium - Std 10th Maharashtra Board To view online View To download fo... Maharashtra board 10th 1 answer
• [Science 1]SSC Science Question Paper 2020 - Part 1 - March - English Medium - Std 10th Maharashtra Board [Science 1]SSC Science Question Paper 2020 - Part 1 - March - English Medium - Std 10th Maharashtra Board To view online View To download fo... Maharashtra board 10th 1 answer
• [geometry]SSC Maths Question Paper 2020 - Part 2 - March - English Medium - Std 10th Maharashtra Board. [geometry] SSC Maths Question Paper 2020 - Part 2 - March - English Medium - Std 10th Maharashtra Board. To view online View To download for... Maharashtra board 10th 1 answer
• The length of sides of a cuboid are a, 2a and 3a . if the relative percentage error in the measurement of a 1% , then what is the relative percentage error Correct answer is 3 Physics 1 answer
• Dimensional analysis of the equation correct answer is 3 Physics 1 answer
• The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate . If the maximum errors in the Correct option is d) 8% Physics 1 answer
• The length and breadth of a metal sheet are 3.124m and 3.002 m respectively. the area of this sheet up to the correct number of significant Correct option is A) 9.378 m² result must have significant figures equal to least figures being multiplid do area of metal sheet 9.378 m² (f... Physics 1 answer
• In the formula , a=3bc2 , a and c have dimensions of electric capicitance and magnetic field intensity respectively . Correct option is A) A) [M⁻³L⁻²T⁴Q⁴] Physics 1 answer
• In a CGS system of units , the density of a material is 4 g cm^-3 . what will be the value of the density of the material Correct option is C) 40 Physics 1 answer
• in a new system of units , the unit of force is 100 N , unit of length is 10 m and unit of time is 100s , unit of mass in this system can be expressed as Correct option is A) 10⁵kg Substituting value of L and T from equation 2 and 3 in eq 1 we get Physics 1 answer
• The accuracy in the measurement of time for 20 oscillations of a pendulum for the following measurement correct option is A)±0.2s Physics 1 answer
• The potential difference across a resistor is measured to be V=(8±0.5) V and current Correct option is A) 4±16.25% Physics 1 answer