Tiêu đề Integrated Series 10th Class Physics - Solutions.pdf ✅

Class 10 – Physics | I – 10 Light - Reflection 1 1.Light Reflection Solutions LEVEL-I 1. Correct option: (D) Light cannot travel through a vacuum is the wrong statement. That "Light cannot travel through a vacuum" is untrue. It is true that light may pass through a vacuum. In reality, it is known that light can travel through empty spaces, including the vacuum of space. This is so because electromagnetic waves, which make up light, may pass across empty space. Therefore, D) Light cannot travel through vacuum is the wrong statement. 2. Correct option: (C) is Because only a portion of the incident light is reflected and quite a large portion goes into water. Because just a small fraction of the incident light is reflected and a sizable percentage travels into the water, the images of clouds and trees in water are always darker than they are in reality. A portion of the light is reflected at the surface when it travels from one medium (like air) into another (like water), while the remaining component is transmitted into the water. Since just a portion of the incident light is reflected, the image seems less bright than it would be in reality. The reflected light is what allows us to see the image. 3. Correct option: (B) Concave. When a concave mirror is placed very close to the object, it forms a magnified, erect, and virtual image. The image appears larger than the actual object and is upright. The virtual image is formed as the reflected rays appear to diverge from a point behind the mirror. 4. Correct option: (A) Concave mirror. When the point source of object is placed at focus, the reflected rays will be parallel beam. Therefore, the correct answer is A) Concave mirror. 5. Correct option: (A) Under no circumstances is right answer. The reflected picture in a convex mirror is always virtual, upright, and scaled down. No matter how far the real object is from the mirror, it never creates an inverted image of it. Option B) When the object is very far from the mirror is wrong because, even in this case, a convex mirror will still provide a virtual, erect, and diminished picture of the thing. Option C) When the object is at a distance equal to the radius of the mirror is wrong because it doesn't alter how a convex mirror creates an image. Option D) Because a convex mirror does not actually have a focal length, Option D) When the object is at a distance equal to the focal length of the mirror is similarly inaccurate. A virtual point behind the mirror serves as the convex mirror's focal point. So, A) Under no circumstances is the right response.