What tool do you use to view the cells?

Biology
What tool do you use to view the cells?

ScanSolve AI Answer

1. Uses of mirrors:

Plane mirror is used in:

  • Periscope
  • Kaleidoscope
  • Rear-view mirrors in vehicles

Answer: (iv) All

Convex mirror is used by shopkeepers as it gives a wide field of view.

Concave mirror is used in solar cookers as it converges sunlight to a point.

2. Fill in the blanks:

The liquid part of blood is called plasma.

Digestion begins in the mouth.

A convex lens is used in a camera.

Plants that make their own food are called autotrophs.

Heterotrophs depend on autotrophs for food.

Saprotrophs feed on dead and decaying matter.

3. Answer the following:

Step 1: Differentiate between real and virtual image.

Real image:

  • Formed when light rays actually meet or converge.
  • Can be caught on a screen.
  • Always inverted.

Virtual image:

  • Formed when light rays appear to meet (diverge).
  • Cannot be caught on a screen.
  • Erect (same side as object).

Step 2: What is a battery?

A battery is a device that stores chemical energy and converts it into electrical energy through electrochemical reactions.

Step 3: Define refraction of light.

Refraction of light is the bending of a light ray as it passes from one transparent medium to another due to change in its speed.

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Quick Answer

1. Uses of mirrors: Plane mirror is used in: Periscope Kaleidoscope Rear-view mirrors in vehicles Answer: (iv) All Convex mirror is used by shopkeepers as it gives a wide field of view.

What tool do you use to view the cells?
Biology

This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

ScanSolve AI Answer
1. Uses of mirrors: Plane mirror is used in: Periscope Kaleidoscope Rear-view mirrors in vehicles Answer: (iv) All Convex mirror is used by shopkeepers as it gives a wide field of view. Concave mirror is used in solar cookers as it converges sunlight to a point. 2. Fill in the blanks: The liquid part of blood is called plasma. Digestion begins in the mouth. A convex lens is used in a camera. Plants that make their own food are called autotrophs. Heterotrophs depend on autotrophs for food. Saprotrophs feed on dead and decaying matter. 3. Answer the following: Step 1: Differentiate between real and virtual image. Real image: Formed when light rays actually meet or converge. Can be caught on a screen. Always inverted. Virtual image: Formed when light rays appear to meet (diverge). Cannot be caught on a screen. Erect (same side as object). Step 2: What is a battery? A battery is a device that stores chemical energy and converts it into electrical energy through electrochemical reactions. Step 3: Define refraction of light. Refraction of light is the bending of a light ray as it passes from one transparent medium to another due to change in its speed.