MP Board Class 9th Science Solutions Chapter 11 Work and Energy Work and Energy Intext Questions Work and Energy Intext Questions Page No. 148 Question 1. A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (Fig. below). Let us take it that the … Read more
MP Board Class 9th Maths Solutions Chapter 10 Circles Ex 10.5 Question 1. In the figure, A, B and C are three points on a circle with centre O such that ∠BOC = 30° and ∠AOB = 60°. If D is a point on the circle other than the arc ABC, find ∠ADC. Solution: We … Read more
MP Board Class 9th Science Solutions Chapter 10 Gravitation Gravitation Intext Questions Gravitation Intext Questions Page No. 134 Question 1. State the universal law of gravitation. Answer: Suppose there are two objects having mass M and m respectively. The distance between their centres is equal to d. The force of attraction is F. Thus, F … Read more
MP Board Class 9th Maths Solutions Chapter 11 Constructions Ex 11.2 Question 1. Construct a triangle ABC in which BC = 7 cm, B = ∠75° and AB + AC = 13 cm. Solution: BC = 7 cm ∠B = 15° AB + BC = 13 cm. Question 2. Construct a triangle ABC in which … Read more
MP Board Class 9th Maths Solutions Chapter 10 Circles Ex 10.4 Question 1. Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm. Find the length of the common chord. Solution: Given Let O and O1 be the centre of bigger and smaller … Read more
MP Board Class 9th Maths Solutions Chapter 9 Areas of Parallelograms and Triangles Ex 9.3 Question 1. In Fig. given below E is any point on median AD of a ∆ABC. Show that ar (ABE) = ar (ACE). Solution: Given. E is any point on median AD of ∆ABC. To prove ar (ABE) = ar … Read more
MP Board Class 9th Science Solutions Chapter 12 Sound Sound Intext Questions Sound Intext Questions Page No. 162 Question 1. How does the sound produced by a vibrating object in a medium reach your ear? Answer: When an object vibrates, it allows the particles of the medium around it to vibrate. It exerts force on … Read more
MP Board Class 9th Maths Solutions Chapter 10 Circles Ex 10.3 Question 1. Draw different pairs of circles. How many points does each pair have in common? What is the maximum number of common points? Solution: Let us draw different pairs of circles as shown below: We gave, In figure Maximum … Read more
MP Board Class 9th Maths Solutions Chapter 10 Circles Ex 10.2 Question 1. Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centers. Solution: We have a circles having its centers at O and O’ two equal chords AB and … Read more
MP Board Class 9th Maths Solutions Chapter 10 Circles Ex 10.1 Question 1. Fill in the blanks: The center of a circle lies in …………of the circle. A point, whose distance from the center of a circle is greater then its radius lies in …………..of the circle. The longest chord of a circle is a … Read more
MP Board Class 9th Maths Solutions Chapter 9 Areas of Parallelograms and Triangles Ex 9.2 Question 1. In fig. given below, ABCD is a parallelogram, AE ⊥ DCand CF ⊥ AD. If AB = 16 cm, AE = 8 cm and CF = 10 cm, find AD. Solution: ar (ABCD) = AE x DC ….(i) … Read more
MP Board Class 9th Science Solutions Chapter 13 Why do we Fall Ill Why do we Fall Ill Intext Questions Why do we Fall Ill Intext Questions Page No. 178 Question 1. State any two conditions essential for good health. Answer: Two conditions essential for good health are: Balanced diet and good nutrition. Good social … Read more
MP Board Class 9th Science Solutions Chapter 14 Natural Resources Natural Resources Intext Questions Natural Resources Intext Questions Page No. 193 Question 1. How is our atmosphere different from the atmospheres on Venus and Mars? Answer: Earth’s atmosphere has mixture of nitrogen (79%), oxygen (20%), and a small fraction of carbon dioxide, water vapours and … Read more
MP Board Class 9th Science Solutions Chapter 15 Improvement in Food Resources Improvement in Food Resources Intext Questions Improvement in Food Resources Intext Questions Page No. 204 Question 1. What do we get from cereals, pulses, fruits and vegetables? Answer: We get carbohydrates from cereals and proteins from pulses. Fruits and vegetables give us lots of … Read more
MP Board Class 9th Maths Solutions Chapter 9 Areas of Parallelograms and Triangles Ex 9.1 Question 1. Which of the following figures lie on the same base and between the same parallels. In such a case, write the common base and the two parallels. Solution: (i) Base DC, Parallels DC and AB (iii) Base QR, … Read more