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A ray of light is incident normally on face AB of a prism of refractive index 5/3 immersed in water of refractive index 4/3 as shown in the figure.
07
Oct
A ray of light is incident normally on face AB of a prism of refractive index 5/3 immersed in water of refractive index 4/3 as shown in the figure. A ray of light is incident normally on face AB of a prism of refractive index 5/3 immersed in water of refractive index 4/3 as shown [...]
Multiply the following fractions: 3(4/7) X 3/5
07
Oct
Multiply the following fractions: 3(4/7) X 3/5 Multiply the following fractions: 3(4/7) X 3/5 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Multiply the following fractions: (vi) 2(3/5) X 3
07
Oct
Multiply the following fractions: (vi) 2(3/5) X 3 Multiply the following fractions: (vi) 2(3/5) X 3 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Multiply the following fractions: (v) 3(2/5) X (4/7)
07
Oct
Multiply the following fractions: (v) 3(2/5) X (4/7) Multiply the following fractions: (v) 3(2/5) X (4/7) October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
A pencil AB is height 2 cm is placed at distance 63 cm from a concave mirror of radius of curvature 40 cm. A slab of refractive index 4/3 and thickness 12 cm is placed between the pencil
07
Oct
A pencil AB is height 2 cm is placed at distance 63 cm from a concave mirror of radius of curvature 40 cm. A slab of refractive index 4/3 and thickness 12 cm is placed between the pencil A pencil AB is height 2 cm is placed at distance 63 cm from a concave mirror [...]
A concave mirror of radius 40 cm is filled with water (refractive index, mu = 4/3) up to height 5 cm. A point object P is floating on the surface of water as shown in the figure.
07
Oct
A concave mirror of radius 40 cm is filled with water (refractive index, mu = 4/3) up to height 5 cm. A point object P is floating on the surface of water as shown in the figure. A concave mirror of radius 40 cm is filled with water (refractive index mu = 4/3) up to [...]
Multiply the following fractions: (iv) 5/6 X 2 (3/7)
07
Oct
Multiply the following fractions: (iv) 5/6 X 2 (3/7) Multiply the following fractions: (iv) 5/6 X 2 (3/7) October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
A ray of light moving along vector (3 root 2 i – 3 j – 3 k) under goes refraction at an interface of two media, which is y-z plane. The refractive index for x 0 it is root 2. Then,
07
Oct
A ray of light moving along vector (3 root 2 i – 3 j – 3 k) under goes refraction at an interface of two media, which is y-z plane. The refractive index for x 0 it is root 2. Then, A ray of light moving along vector (3 root 2 i - 3 j [...]
Multiply the following fractions: (iii) 3/2 X 5(1/3)
07
Oct
Multiply the following fractions: (iii) 3/2 X 5(1/3) Multiply the following fractions: (iii) 3/2 X 5(1/3) October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Multiply the following fractions: (ii) 6(2/5) X (7/9)
07
Oct
Multiply the following fractions: (ii) 6(2/5) X (7/9) Multiply the following fractions: (ii) 6(2/5) X (7/9) October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,