Question Answers

Let the x-y plane be the boundary between two transparent media. Medium 1 in z > 0 has refractive index of root 2 and medium 2 with z < 0 has a refractive index of root 3. A ray of light Let the x-y plane be the boundary between two transparent media. Medium 1 in [...]

Which is greater? (v) 2.03 or 2.30 Which is greater? (v) 2.03 or 2.30 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Which is greater? (iv) 1.37 or 1.49 Which is greater? (iv) 1.37 or 1.49 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Which is greater? (iii) 7 or 0.7 Which is greater? (iii) 7 or 0.7 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8 m behind the first car is overtaking the first car at a relative speed of 15 m/s. The speed of the image A car is fitted with a convex side-view mirror of focal length 20 cm. A [...]

Which is greater? (ii) 0.7 or 0.5 Which is greater? (ii) 0.7 or 0.5 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Which is greater? (i) 0.5 or 0.05 Which is greater? (i) 0.5 or 0.05 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Find: (viii) 2 1/5 by 1 1/5 Find: (viii) 2 1/5 by 1 1/5 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Find: (vii) 3 1/5 by 1 2/3 Find: (vii) 3 1/5 by 1 2/3 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Find: (vi) 2/5 by 1 1/2 Find: (vi) 2/5 by 1 1/2 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,