What is the wavelength of the visible spectrum?
Show Hint
- 8500 - 9800 angstrom
- 7800 - 8000 angstrom
- 3900 - 7600 angstrom
- 1300 - 3000 angstrom
The Correct Option is C
Solution and Explanation
Top Questions on General Science
Figure below shows the scatterplot of training pixels of water (w), sand (s), forest (f) and commercial (c) in bands 1 and 2. Pixel ‘A’ having digital number 4 and 6 in band 1 and band 2, respectively, is to be classified using k-nearest neighbor classifier having the value of k equal to 5. The assigned class for the pixel ‘A’ is ____________
- GATE GE - 2025
- Geographic Information System
- General Science
The figure below shows a one-dimensional function, \( f \), and a filter \( w \). Consider \( f \) is padded with zeros on both sides. Which one among the following will be the final convolution output of \( f \) with \( w \) after the padding zeros are removed from the output? \[ f = [0 \quad 0 \quad 1 \quad 0 \quad 0], \quad w = [1 \quad 2 \quad 3] \]
- GATE GE - 2025
- Geographic Information System
- General Science
In supervised digital image classification, the number of combinations to be evaluated to select three best bands out of five bands is ____________ (Answer in integer).
- GATE GE - 2025
- Geographic Information System
- General Science
Piecewise linear contrast stretch is performed on an 8-bit image. The output (\( BV_{{out}} \)) would be zero for input value \( BV_{{in}} \leq 80 \). The output (\( BV_{{out}} \)) would be 255 for \( BV_{{in}}>120 \). For the remaining input values, \( BV_{{out}} = (2 \times BV_{{in}}) - 20 \). If \( BV_{{in}} = 120 \), then \( BV_{{out}} \) is __________ (Answer in integer).
- GATE GE - 2025
- Geographic Information System
- General Science
In levelling between two points P and Q on opposite banks of a river, the level was set up near P, and the staff readings on P and Q were 2.165 m and 3.810 m, respectively. The level was then moved and set up near Q and the respective staff readings on P and Q were 0.910 m and 2.355 m. The true difference of level between P and Q is __________ m (rounded off to 3 decimal places).
- GATE GE - 2025
- Geographic Information System
- General Science
Questions Asked in IPU CET exam
- The central processing unit consist of:
- IPU CET - 2023
- Computer Literacy
- Which among the following is not a mobile operating system?
- IPU CET - 2023
- Operating Systems
Which of the following is an octal number equal to decimal number \((896)_{10}\)?
- IPU CET - 2023
- Computer Fundamentals or Terminologies
The variance of the following grouped data is:
- IPU CET - 2023
- Variance
For what value of \( \alpha \), the matrix A is a singular matrix if \(A=\begin{bmatrix} 1 & 3 & \alpha+2 \\[0.3em] 2 & 4 & 8 \\[0.3em] 3 & 5 & 10 \end{bmatrix}\) ?
- IPU CET - 2023
- Matrices