the focal length of a concave mirror has a magnitude of 20 cm. what is its radius of curvature?
Contents
- 1 What is the radius of the curvature of mirror if focal length is 20cm?
- 2 When radius of curvature of a mirror is 20 cm the focal length is 10 cm True False?
- 3 How far is a concave mirror from focal length 20cm?
- 4 What do you mean by focal length of a spherical mirror is 20 cm?
- 5 What is the focal length of concave mirror?
- 6 What is the relation between focal length and radius of curvature calculate the focal length of a spherical mirror whose radius of curvature is 25 cm?
- 7 Is 20 cm What is its focal length?
- 8 What is the focal length of convex mirror whose radius of curvature is 32cm?
- 9 What is the Snell’s law the radius of curvature of an spherical mirror is 20cm what is its focal length?
- 10 What is the distance of an object from a concave mirror of focal length 20cm so that size of real images three times size of object?
- 11 How far should an object be placed from a concave mirror of focal length 20cm so as to obtain an image magnified three times?
- 12 When an object is placed at a distance of 20cm?
- 13 What is the focal length of a curve mirror is it has a radius of curvature is a 20 cm B 35 cm C 25 cm d 40 cm?
- 14 What is the focal length of the plane mirror?
- 15 What is the focal length of a spherical mirror of radius of curvature 16 cm?
- 16 How do you find the focal length of a concave mirror experiment?
- 17 What is the focal length of convex lens of focal length 30 cm?
- 18 How do you find focal length?
- 19 What is the relation between focal length and radius of curvature of a concave mirror does the same relation holds for a convex mirror?
- 20 Is focal length the same as radius of curvature?
- 21 How do you find the focal length from the radius of curvature?
- 22 What is the focal length of a spherical mirror of radius of curvature 30 cm?
- 23 What is the radius of curvature of a spherical mirror whose focal length is CM also name the type of mirror?
- 24 What is mirror formula?
- 25 What is the focal length of a concave mirror whose radius of curvature?
- 26 What is the focal length of convex mirror whose radius of?
- 27 Which of the following is the focal length of a convex mirror whose radius of curvature is 30cm *?
- 28 What is the radius of curvature of a spherical mirror?
- 29 What is Snell’s law class 10?
- 30 What is radius of curvature of a spherical mirror ?( 1?
- 31 What is the distance of an object from a concave mirror of focal length 10 cm?
- 32 What is the distance of an object from a concave mirror of focal length 20 cm so that the size of the real image?
- 33 At what distance an object is kept from a concave mirror of focal length 20cm such away that it forms 2 times magnified image?
- 34 How far should an object be placed from a concave mirror of focal length 40cm?
- 35 The radius of curvature of a spherical mirror is 20 cm. What is its focal length?…
- 36 2. The radius of curvature of a spherical mirror is 20 cm What is its focal length? #class10
- 37 The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
- 38 The focal length of a convex mirrorr is `20cm` its radius of curvature will be
What is the radius of the curvature of mirror if focal length is 20cm?
The radius of curvature is double the numerical value of the focal length of a spherical mirror. (The focal length is a point on the principal axis where rays coming parallel to the axis from infinity meet.) Therefore, the answer is option (D); 40 cm.
When radius of curvature of a mirror is 20 cm the focal length is 10 cm True False?
Hence, its radius of curvature will be 5 cm – The given statement is false. Explanation: The focal length of a spherical mirror is half of its radius of curvature.
How far is a concave mirror from focal length 20cm?
∴ Distance of the Object from the mirror is 30 cm.What do you mean by focal length of a spherical mirror is 20 cm?
Explanation: The focal length of a ‘spherical mirror’ is half of its ‘radius of curvature. ‘
What is the focal length of concave mirror?
Focal length – Focal length of the concave mirror is the distance between the pole P of concave mirror and the focus F. By obtaining the Real image of the distant object, the focal length of concave mirror can be determined, as shown in the diagram.
What is the relation between focal length and radius of curvature calculate the focal length of a spherical mirror whose radius of curvature is 25 cm?
The relation between focal length (f) and radius of curvature (R) of a spherical mirror is that the focal length is equal to half of the radius of curvature i.e. f=R2.
Is 20 cm What is its focal length?
What is its focal length? Hence the Focal length of the spherical mirror is 10 cm.
What is the focal length of convex mirror whose radius of curvature is 32cm?
So, according to your question the radius of curvature of a convex mirror is 32cm. 16 cm. So the focal length of the convex mirror is 16cm.
What is the Snell’s law the radius of curvature of an spherical mirror is 20cm what is its focal length?
What is its focal length? Thus, the focal length of this spherical mirror is 10 cm.
What is the distance of an object from a concave mirror of focal length 20cm so that size of real images three times size of object?
Q4. The focal length of a concave mirror is 30 cm. Find the distance of the object in front of the mirror, so that the image is three times the size of the object. Q5.
How far should an object be placed from a concave mirror of focal length 20cm so as to obtain an image magnified three times?
Answer: so the object must be placed 30 cm from the mirror.
When an object is placed at a distance of 20cm?
If an object is placed at a distance of 20cm from the pole of a concave mirror, the magnification of its real image is 3. If the object is moved away from the mirror by 10cm, then the magnification is -1.
What is the focal length of a curve mirror is it has a radius of curvature is a 20 cm B 35 cm C 25 cm d 40 cm?
The radius of curvature of a spherical mirror is 20 cm. What is its focal length? Therefore, the focal length of the spherical mirror is 10 cm.
What is the focal length of the plane mirror?
infinity
However the focal length of a plane mirror is infinity; its optical power is zero. Concave and Convex mirrors (spherical mirrors) are also able to produce virtual images similar to a plane mirror.
See also why was writing important in ancient egyptWhat is the focal length of a spherical mirror of radius of curvature 16 cm?
So, according to your question the radius of curvature of a convex mirror is 32cm. 16 cm. So the focal length of the convex mirror is 16cm.
How do you find the focal length of a concave mirror experiment?
Drag the screen by clicking on point A of the screen till you get a sharp image of the object. Measure the distance between the concave mirror and the screen with given metre scale. This measured distance is focal length of concave mirror. Repeat the process two or three times.
What is the focal length of convex lens of focal length 30 cm?
Hence, the focal length of the combination of lenses is 60 cm.
How do you find focal length?
Focal length = (Object distance / ((1 / Magnification) + 1)) * 1000 , where: Object distance is given in mm; and.What is the relation between focal length and radius of curvature of a concave mirror does the same relation holds for a convex mirror?
Answer Expert VerifiedRelation between the focal length and radius of curvature : For a spherical mirror of small aperture to its radius of curvature, the focal length of the mirror is one half of the radius of curvature of the mirror. This relation can be proved for both the mirrors that is concave and convex.
Is focal length the same as radius of curvature?
The distance from the pole to the center of curvature is called (no surprise, I hope) the radius of curvature (r). The distance from the pole to the focal point is called the focal length (f). The focal length of a spherical mirror is then approximately half its radius of curvature.
How do you find the focal length from the radius of curvature?
A curved mirror with radius of curvature R has a focal length f = R / 2 (for normal incidence), determined only by the geometry and thus independent of the wavelength.
What is the focal length of a spherical mirror of radius of curvature 30 cm?
=>f = 15 cm.
What is the radius of curvature of a spherical mirror whose focal length is CM also name the type of mirror?
The distance between the center of curvature and pole of a spherical mirror is called radius of curvature. Focal length is half of the radius of curvature. So f = 24/2 = + 12 cm It is a convex mirror.
What is mirror formula?
Let’s explore the mirror formula (1/f = 1/v+1/u) and see how to locate images without drawing any ray diagrams.What is the focal length of a concave mirror whose radius of curvature?
How far is this converging point from the mirror’s surface if the radius of curvature (R) of the mirror is 150 cm? If the radius of curvature is 150 cm. then the focal length is 75 cm.…
The Anatomy of a Curved Mirror.
| Principal axis | Center of Curvature | Vertex |
|---|---|---|
| Focal Point | Radius of Curvature | Focal Length |
What is the focal length of convex mirror whose radius of?
The focal length of a spherical mirror is equal to half the radius of curvature of that mirror. Hence, the focal length of the given convex mirror is 16 cm.
Which of the following is the focal length of a convex mirror whose radius of curvature is 30cm *?
Hence, the required focal length is 15 cm.
What is the radius of curvature of a spherical mirror?
The radius of curvature of a spherical mirror is the radius of the circle of which the spherical mirror is a part. It can also be defined as the distance between the centre of curvature of the mirror and the pole of the mirror on the principal axis. The radius of curvature is also a measure of how curved the mirror is.
What is Snell’s law class 10?
The laws of refraction or Snell’s laws (class 10) states: … For a given pair of media, the sine value of the angle of incidence (denoted by sin i) divided by the sine value of the angle of refraction (denoted by sin r) is constant, which is known as the refractive index of the medium.
What is radius of curvature of a spherical mirror ?( 1?
The radius of the curvature of the mirror is defined by the radius of the sphere from which the mirror was cut from. Therefore the radius of curvature of a plane mirror is infinite in length. Radius of curvature (R) = 20 cm. Radius of curvature of a spherical mirror = 2 X Focal length (f)R= 2f.
What is the distance of an object from a concave mirror of focal length 10 cm?
Answer: The distance of the object is -7.5 cm.
What is the distance of an object from a concave mirror of focal length 20 cm so that the size of the real image?
Thus, the distance of the object from the mirror is equal to $10cm$. Hence, the correct answer is option C.
At what distance an object is kept from a concave mirror of focal length 20cm such away that it forms 2 times magnified image?
Answer Expert Verified. so the object must be placed 30 cm from the mirror.
