plotting - how to restrict the tick options to finite number of major and minor ticks

When you plot a data using Listplot, use the following

data=Uncompress[FromCharacterCode@ Flatten[ImageData[Import["https://i.stack.imgur.com/OiZrp.png"],"Byte"]]] ListPlot[data,Plotrange->Full,Framellabel->{"Length",""},LabelStyle->{FontSize->19},PlotTheme->"Classic",Frame->True,Joined->True,ImageSize->Large,PlotStyle->{Black}]

Then we get a neat graph like this, however, this is not a neat image for any scientific publications, For that, we need to fix Major ticks and minor ticks to a minimum, otherwise, all those minor ticks would distract the attention.

One solution is to write manually, but that is a herculean process. but if you use some other graph plotting softwares, They have the options to control minor ticks and Major ticks.

I am certain that Mathematica also has.Could anyone give me a nice way to control the minor ticks and Major ticks?

For example, in the x-axis, I just need one minor tick in between two major ticks.and y-axis I also need three Major ticks such as 0.35,0.45,0.55 and 0.4 and 0.5 as minor ticks

Comments and previous questions

1) I also have refereed some of the Mathematica questions.

here, where they use Finddivison method, but that would not work here in my y axis, all other minor option does not look very neat.

2) I always need inward ticks.

3) please let me also know, if someone uses Mathematica for publishing scientific papers, how do you make a neat image. Any suggestions for fonts or size of the image etc are welcome.

Answer

Fine-tune to your needs:

bigTicks = Table[{x, x, {.05, 0}}, {x, 50., 50.5, .1}];
littleTicks = Table[{x, x, {.02, 0}}, {x, 50.05, 50.55, .1}];
Plot[1, {x, 50, 50.5}, 
 Ticks -> {Union[bigTicks, littleTicks], Automatic}]