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When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that the liquid must have refractive index.
17
Nov
When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that the liquid must have refractive index. it acts as a plane sheet of glass. This implies that the liquid must have refractive index When a biconvex lens of glass [...]
The distance between an object and the screen is 100 cm. A lens produces an image on the screen when the lens is placed at either of the positions 40 cm apart. The power of the lens is approximately
17
Nov
The distance between an object and the screen is 100 cm. A lens produces an image on the screen when the lens is placed at either of the positions 40 cm apart. The power of the lens is approximately The distance between an object and the screen is 100 cm. A lens produces an image [...]
A screen is placed a distance 40 cm away from an illuminated object. A converging lens is placed between the source and the screen and it is attempted to form the image of the source on the screen. If no position could be found, the focal length of the lens
17
Nov
A screen is placed a distance 40 cm away from an illuminated object. A converging lens is placed between the source and the screen and it is attempted to form the image of the source on the screen. If no position could be found, the focal length of the lens A convex lens of glass [...]
An illuminated object is placed on the principal axis of a converging lens so that a real image is formed on the other side of the lens. If the object is shifted a little,
17
Nov
An illuminated object is placed on the principal axis of a converging lens so that a real image is formed on the other side of the lens. If the object is shifted a little, An illuminated object is placed on the principal axis of a converging lens so that a real image is formed on [...]
The pH of a solution containing 0.4 M HCO−3 and 0.2 M CO2−3 is : [Ka1(H2CO3) = 4×10^−7, Ka2(HCO^−3) = 4 × 10^−11]
17
Nov
The pH of a solution containing 0.4 M HCO−3 and 0.2 M CO2−3 is : [Ka1(H2CO3) = 4×10^−7, Ka2(HCO^−3) = 4 × 10^−11] Ka2(HCO^−3) = 4 × 10^−11] The pH of a solution containing 0.4 M HCO−3 and 0.2 M CO2−3 is : [Ka1(H2CO3) = 4×10^−7 November 17, 2020 Category: Chapter 6 - Ionic Equilibrium [...]
In displacement method, the lengths of images in the two positions of the lens between the object and the screen are 9 cm and 4 cm respectively. The length of the object must be
17
Nov
In displacement method, the lengths of images in the two positions of the lens between the object and the screen are 9 cm and 4 cm respectively. The length of the object must be In displacement method the lengths of images in the two positions of the lens between the object and the screen are [...]
The distance between the object and its real image formed by a convex lens cannot be
17
Nov
The distance between the object and its real image formed by a convex lens cannot be The distance between the object and its real image formed by a convex lens cannot be November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Refraction at Spherical Surfaces , Part 2 ,
A biconvex lens of focal length f forms a circular image of sun of radius r in focal plane. Then,
17
Nov
A biconvex lens of focal length f forms a circular image of sun of radius r in focal plane. Then, A biconvex lens of focal length f forms a circular image of sun of radius r in focal plane. Then November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Refraction at [...]
The image of a square hole in a screen illuminated by light is obtained on another screen with the help of a converging lens. The distance of the hole from the lens is 40 cm. If the area of the image is nine times that of the hole, the focal length of the lens is :
17
Nov
The image of a square hole in a screen illuminated by light is obtained on another screen with the help of a converging lens. The distance of the hole from the lens is 40 cm. If the area of the image is nine times that of the hole, the focal length of the lens is [...]
The distance between two point object P and Q is 32 cm, a convex lens of focal length 15 cm is placed between them so that the images of both the objects are formed at the same place. The distance of P from the lens could be
17
Nov
The distance between two point object P and Q is 32 cm, a convex lens of focal length 15 cm is placed between them so that the images of both the objects are formed at the same place. The distance of P from the lens could be a convex lens of focal length 15 cm [...]