MATLAB Graphics set 4

Que.What is the range of co-ordinates obtained of the following code?
[x,y]=meshgrid(4)

a. 1:4 in x and y co-ordinates
b. 0:4 in x and y co-ordinates
c. only 4 in x and y co-ordinate
d. Error
Que.What is the nature of z in surf(x,y,z)?
a. Integer
b. Vector
c. Matrix
d. String
Que.What is the RGB triplet style for yellow?
a. [1 1 0]
b. [1 0 1]
c. [1 0 0]
d. [0 1 1]
Que.What is the range of RGB triplets for the surf command?
a. [1 0]
b. [0 1]
c. (0 1)
d. (0 1]
Que.What is the short name for black as input to the surf command?
a. b
b. bl
c. k
d. blk
Que.How do we create horizontal bar graphs in MATLAB?
a. bar3h()
b. barh()
c. bar3()
d. not possible
Que.The meshc() command takes complex inputs.
a. True
b. False
c. May be True or False
d. Can’t say
Que.colorbar command gives different color to the bar chart following their ______
a. height
b. width
c. length
d. independently
Que.The ezsurf command is present in the ___________
a. Symbolic Math Toolbox
b. Statistics and Machine Learning Toolbox
c. Partial Differentiation Equation Toolbox
d. Neural Network Toolbox
Que.The color density of the bar-chart drawn from the bar3() command is always proportional to the height of the bars.
a. True
b. False
c. May be True or False
d. Can’t say