Image Formation in Convex Mirror

Q. For the ray diagram shown in figure, point A is

1. focus
2. centre of curvature
3. pole
4. between pole and focus

Q. All of the following statements are correct except

1. The magnification produced by a convex mirror is always less than one
2. A virtual, erect, same-sized image can be obtained using a plane mirror
3. A virtual, erect, magnified image can be formed using a concave mirror
4. A real, inverted, same-sized image can be formed using a convex mirror

Q.

The image formed by a spherical mirrors virtual. The mirror is

1. Convex

2. Concave

3. Either convex or concave

4. Cannot say

Q. An object is placed in front of a spherical mirror at a very far distance and its image is observed to be formed highly diminished, virtual and upright. The mirror is

1. concave
2. convex
3. plane mirror
4. either plane mirror or concave mirror

Q. Assertion : Plane and convex mirrors can produce real images of objects.
Reason : A plane or convex mirror can produce a real image, if the object is virtual.

Choose the correct one out of the given responses.

1. Both assertion and reason are true and reason is the correct explanation of the assertion.
2. Both assertion and reason are true, but reason is not the correct explanation of the assertion.
3. Assertion is true, but reason is false.
4. Both assertion and reason are false.

Q. To get an image larger than the object one can use

1. a convex mirror but not a concave mirror.
2. a concave mirror but not a convex mirror.
3. either a convex mirror or a concave mirror.
4. a plane mirror.

Q. A convex mirror is used to form an image of a real object. Then mark the wrong statement.

1. The image lies between the pole and focus
2. The image is diminished in size
3. The image is erect
4. The image is real

Q. Assertion: Focal length of a convex mirror is $20\text{cm}$. If a real object is placed at a distance of $20\text{cm}$ from the mirror, its virtual, erect and diminished image will be formed.
Reason: If a virtual object is placed at $20\text{cm}$ distance behind the convex mirror, its image is formed at infinity.
Choose the correct option based on it.

1. Assertion and reason both are correct and reason is the correct explanation of assertion
2. Assertion and reason both are correct and reason is not the correct explanation of assertion
3. Assertion is true, but reason is false
4. Assertion is false, but reason is true.

Q.

A convex mirror of focal length f forms an image which is times the object. The distance of the object from the mirror is

1. 

2. 
3. 
4. 

Q. The figure shows an object $O$ and its image $I$ formed by a mirror with its pole at $B$. If $AB$ is the principal axis of the mirror, the type of mirror is

1. plane
2. concave
3. convex
4. either concave or convex

Q. A boy $2\text{m}$ tall stands at a distance $40\text{cm}$ in front of a mirror. He sees an erect image $1\text{m}$ high. The nature of mirror is

1. concave
2. convex
3. plane
4. either convex or concave

Q. The mirror which is used as a rearview mirror in automobiles is

1. Plane mirror
2. Convex mirror
3. Concave mirror
4. Any of the above

Q. The radius of curvature of a convex mirror is $60\text{cm}$. When an object is placed at $B$ its image is formed at $B^{\prime }$. If size of the image is half that of the object then the distance between $B$ and $B^{\prime }$ is

1. $30\text{cm}$
2. $60\text{cm}$
3. $45\text{cm}$
4. $90\text{cm}$

Q. A 2cm tall object is placed 15 CM in front of a concave mirror of focal length 10cm what is the size and nature of the image

Q. A convex mirror of focal length f forms an image which is $\frac{1}{n}$ times the object. The distance of the object from the mirror is

1. (n – 1) f
2. $\left(\frac{n-1}{n}\right)f$
   
3. $\left(\frac{n+1}{n}\right)f$
   
4. (n + 1) f