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Dafna11 [192]
3 years ago
12

Which statement about images is correct? A) A virtual image cannot be formed on a screen. B) A virtual image cannot be viewed by

the unaided eye. C) A virtual image cannot be photographed. D) Mirrors always produce real images.
Computers and Technology
1 answer:
Dominik [7]3 years ago
4 0

Answer:

A) A virtual image cannot be formed on a screen.

Explanation:

A virtual image cannot be formed on a screen is correct about images.

A virtual image can be viewed by the unaided eye.

A virtual image can be photographed.

Mirrors don't always produce real images.

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Answer:

The program to this question can be described as follows:

Program:

#include <iostream> //defining header file

using namespace std;

int main() //defining main method

{

int x1,rem,i=1; //defining integer variable

long Num=0;// defining long variable

cout << "Input a decimal number: "; // print message

cin >> x1; //input value by user

while (x1!=0) //loop for calculate binary number

{

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rem= x1%2;

x1=x1/2;

Num =Num +rem*i;//holding calculate value

i=i*10;

}

cout <<Num;//print value

return 0;

}

Output:

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Explanation:

In the above code, four variable "x1, rem, i, and Num" is declared, in which three "x1, rem, and i" is an integer variable, and one "Num" is a long variable.

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  • In the loop, first, we check x1 variable value is not equal to 0, inside we calculate it binary number that store in long "Num" variable, after calculating its binary number the print method "cout" is used to prints its value.  
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