Tiwari Academy Discussion

Rachit Ahuja

Asked: November 1, 2020In: Class 10

Find the nature of the roots of the following quadratic equations. If the real roots exist, find them: 2 x² – 3x + 5 = 0

NCERT Solutions for Class 10 Maths Chapter 4 Important NCERT Questions Quadratic Equation NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.4 Page No:91 Questions No:1

Rachit Ahuja

Asked: November 1, 2020In: Class 10

Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24 m, find the sides of the two squares.

NCERT Solutions for Class 10 Maths Chapter 4 Important NCERT Questions Quadratic Equation NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.3 Page No:88 Questions No:11

Rachit Ahuja

Asked: November 1, 2020In: Class 10

An express train takes 1 hour less than a passenger train to travel 132 km between Mysore and Bangalore (without taking into consideration the time they stop at intermediate stations). If the average speed of the express train is 11km/h more than that of the passenger train, find the average speed of the two trains.

NCERT Solutions for Class 10 Maths Chapter 4 Important NCERT Questions Quadratic Equation NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.3 Page No:88 Questions No:10

Rachit Ahuja

Asked: November 1, 2020In: Class 10

Two water taps together can fill a tank in 75/8 hours. The tap of larger diameter takes 10 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank

NCERT Solutions for Class 10 Maths Chapter 4 Important NCERT Questions Quadratic Equation NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.3 Page No:88 Questions No:9

Rachit Ahuja

Asked: November 1, 2020In: Class 10

A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.

NCERT Solutions for Class 10 Maths Chapter 4 Important NCERT Questions Quadratic Equation NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.3 Page No:88 Questions No:8

Manvik Solanki

Asked: October 30, 2020In: Class 9

With the help of Table 4.1, find out the mass number of oxygen and Sulphur atom.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-52 Questions No-2

Manvik Solanki

Asked: October 30, 2020In: Class 9

For the symbol H,D and T tabulate three sub-atomic particles found in each of them.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-53 Questions No-1

Manvik Solanki

Asked: October 30, 2020In: Class 9

Write the electronic configuration of any one pair of isotopes and isobars.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-53 Questions No-2

Manvik Solanki

Asked: October 30, 2020In: Class 9

Compare the properties of electrons, protons and neutrons.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-54 Questions No-1

Manvik Solanki

Asked: October 30, 2020In: Class 9

What are the limitations of J.J. Thomson’s model of the atom?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-54 Questions No- 2

Find the nature of the roots of the following quadratic equations. If the real roots exist, find them: 2 x² – 3x + 5 = 0

Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24 m, find the sides of the two squares.

Two water taps together can fill a tank in 75/8 hours. The tap of larger diameter takes 10 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank

A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.

With the help of Table 4.1, find out the mass number of oxygen and Sulphur atom.

For the symbol H,D and T tabulate three sub-atomic particles found in each of them.

Write the electronic configuration of any one pair of isotopes and isobars.

Compare the properties of electrons, protons and neutrons.

What are the limitations of J.J. Thomson’s model of the atom?

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