Question : Neeti wants to use an input device that works by sensing the user's finger movement and downward pressure. Which among the following should she use?
Option 1: Scanner
Option 2: Touchpad
Option 3: Light pen
Option 4: Keyboard
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Correct Answer: Touchpad
Solution : The correct answer is Touchpad.
Neeti should use a touchpad. Touchpads are input devices that detect the movement and pressure of a user's finger on a flat surface. They are commonly found on laptops and are used for navigating the cursor on the screen, clicking, and performing various gestures. The touchpad matches the description of an input device that senses both finger movement and downward pressure.
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Question : Rishu wants to input data into the computer by pressing the keys. Which input device should he use?
Option 1: Keyboard
Option 2: Scanner
Option 3: Joystick
Option 4: Light Pen
Question : Which of the following is an input device?
Option 1: Speaker
Option 2: Keyboard
Option 3: Plotter
Option 4: Printer
Question : Which of the following is an output device?
Option 1: OCR device
Option 2: Projector
Option 3: MICR (Magnetic Ink Character Recognition)
Option 4: Scanner
Question : Which experiment was designed to trace the motion of the earth through the 'luminiferous aether', a theoretical substance necessary for the transmission of light?
Option 1: Maxwell and Hertz's experiment
Option 2: Faraday and Henry's experiment
Option 3: Michelson-Morley's experiment
Option 4: Marconi and Thomson's experiment
Question : ____________ states that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.
Option 1: Tyndall's Law
Option 2: Pascal's Law
Option 3: Graham's Law
Option 4: Kepler's Law
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