What type of image does a flat (plane) mirror produce?

A real, inverted, magnified image A virtual, upright, same-size image that appears to be as far behind the mirror as the object is in front A real, upright, diminished image at the mirror surface No image — plane mirrors only reflect, they do not form images

What is a concave mirror?

A mirror that curves outward, like the outside of a ball A flat mirror with a curved frame A mirror that curves inward (like the inside of a bowl) and converges parallel rays of light to a focal point A mirror that absorbs rather than reflects light

A concave mirror is used in a solar cooker. How does it work?

The concave mirror absorbs sunlight and converts it to heat through its black coating The concave mirror reflects and concentrates sunlight onto a small focal point, producing very high temperatures at that point The curved surface of the mirror traps sunlight inside, preventing it from escaping The concave mirror focuses sound waves from the sun to heat the cooking pot

A car headlight uses a concave mirror placed behind the bulb. What is the purpose of this arrangement?

The concave mirror magnifies the light to make it brighter The bulb is placed at the focal point of the concave mirror so that reflected light emerges as a parallel beam pointing forward The mirror curves light around the car for 360° visibility The concave mirror changes the colour of the light to a brighter white

What is a convex mirror, and what kind of image does it always produce?

A convex mirror curves outward; it produces a real, inverted, magnified image A convex mirror curves inward; it produces a virtual image A convex mirror curves outward; it always produces a virtual, upright, and diminished (smaller) image A convex mirror is flat; it produces the same image as a plane mirror

Why are convex mirrors used as car wing mirrors and in shops as security mirrors?

They make objects appear closer, improving safety They give a wider field of view than flat mirrors — you can see more of the surroundings in a smaller mirror, though objects appear further away than they are They are used because they are cheaper to manufacture than flat mirrors They produce real images that can be recorded by security cameras

What is a 'real' image in optics?

An image that looks realistic — matching the object's true colours An image formed by rays of light that actually converge at a point — it can be projected onto a screen An image that appears on the mirror surface itself Any image you can see with your eyes, including virtual images

The Hubble Space Telescope uses a large concave (primary) mirror to collect and focus light from distant stars. What advantage does a mirror have over a large glass lens for this purpose?

A mirror produces a brighter image because it reflects 100% of light A mirror can be made much larger and lighter than a glass lens; it reflects all wavelengths equally and has no chromatic aberration A mirror can be used in air while lenses only work in a vacuum A mirror produces a virtual image that is easier for cameras to capture

An object is placed between a concave mirror and its focal point. What type of image is produced?

A real, inverted, magnified image in front of the mirror A real, inverted, same-size image at the focal point A virtual, upright, magnified image — this is how concave mirrors are used as makeup mirrors No image — objects closer than the focal point cannot produce an image

Which type of mirror would you use to set paper on fire using sunlight, and where would you hold the paper?

A convex mirror — hold the paper anywhere in front of it A plane mirror — hold the paper behind the mirror A concave mirror — hold the paper at the focal point where sunlight is concentrated A convex mirror — the wide field of view gathers more sunlight